Other

China Evaporating Dish

A porcelain evaporating dish used in analytical chemistry to evaporate liquids and concentrate solutions, with high thermal shock resistance. This fired porcelain article is for laboratory use and falls under tariff item 6909.11.00.

China Filter Housing Nozzle

A precision-machined china nozzle designed for filter housings in pharmaceutical processing equipment. Its corrosion-resistant porcelain construction makes it suitable for chemical and technical applications, falling under tariff item 6909.11.00 for ceramic wares of porcelain or china.

China Filtering Crucible with Lid

A porcelain Gooch crucible with a fritted base and lid for quantitative lab filtration, featuring a translucent body. This fired porcelain article is for laboratory chemical use, fitting tariff item 6909.11.00.

China Kjeldahl Digestion Flask

A porcelain flask for nitrogen digestion in protein analysis, chemically inert and fired for laboratory use. This article falls under tariff item 6909.11.00 as a ceramic ware of porcelain for chemical or technical applications.

China Laboratory Stirrer Shaft

A high-purity china shaft component for magnetic stirrers used in chemical laboratories, resistant to acids and bases. As a fired porcelain article for technical applications, it qualifies under tariff item 6909.11.00.

China Reactor Vessel Impeller

An impeller blade assembly made of china for chemical reactor vessels, providing chemical resistance in demanding environments. This fired porcelain article is used for technical purposes and falls under tariff item 6909.11.00.

Laboratory China Weighing Bottle

A ground glass-stoppered porcelain bottle for storing and weighing hygroscopic lab samples. As a fired porcelain article for laboratory use, it qualifies under tariff item 6909.11.00.

Laboratory Porcelain Mortar and Pestle Set

A coarse-glazed porcelain mortar and pestle set for grinding chemicals and samples in labs, non-food grade. This fired porcelain article is for laboratory chemical use, fitting tariff item 6909.11.00.

Porcelain Buchner Funnel

A perforated porcelain funnel for vacuum filtration in laboratories, fired to withstand acids and high temperatures. This fired porcelain article is for laboratory use and falls under tariff item 6909.11.00.

Porcelain Centrifuge Bowl Liner

A liner insert for laboratory centrifuges made of translucent porcelain, designed for sample separation. As a fired porcelain article for technical laboratory use, it is classified under tariff item 6909.11.00.

Porcelain Combustion Boat

A high-form glazed porcelain boat for ash determination in muffle furnaces, for laboratory technical use. As a fired porcelain article, it qualifies under tariff item 6909.11.00.

Porcelain Compressor Piston Ring

A fired porcelain ring for pistons in air compressors used in chemical plants, offering wear resistance. This article serves a technical purpose and is made of porcelain, fitting tariff item 6909.11.00.

Porcelain Crucible for Laboratory Use

A high-fired porcelain crucible designed for melting and heating substances in chemical laboratories, featuring a glazed interior for chemical resistance. This fired porcelain article falls under tariff item 6909.11.00.

Porcelain Desiccator Plate

A fired porcelain plate with ridges, used inside desiccators to hold samples during drying. It is resistant to laboratory reagents and has been shaped and fired, meeting Chapter 69 requirements for ceramic laboratory wares. This item falls under tariff item 6909.11.00 as a porcelain article for technical laboratory use.

Porcelain Extruder Die Insert

A die insert component for plastic extruders in technical manufacturing, made of durable porcelain. This fired porcelain article is used for chemical processing and qualifies under tariff item 6909.11.00.

Porcelain Gas Washing Bottle

A fired china bottle designed for scrubbing gases in chemical experiments, featuring standard taper joints for secure connections. It is shaped and fired, qualifying as a ceramic ware for laboratory or chemical use under Chapter 69. This item is classified under tariff item 6909.11.00 as a porcelain or china article for technical applications.

Porcelain Pump Valve Body

A precision-machined porcelain component used as a valve body in industrial pumps for handling corrosive chemicals. As a fired porcelain article for technical use, it falls under tariff item 6909.11.00.

Alumina Crucible for Laboratory Use

High-purity alumina crucible designed for high-temperature melting and analysis in chemical laboratories. Its sintered aluminum oxide composition achieves a hardness of 9 on the Mohs scale, meeting Chapter 69 requirements for fired ceramic products. This item is classified under tariff item 6909.12.90 as other ceramic wares for laboratory or technical uses.

Aluminum Oxide Technical Packing Jars

Dense aluminum oxide jars used for packing corrosive goods in chemical transport. These fired ceramic jars have a hardness exceeding 9 on the Mohs scale, making them impervious to most reagents. They fall under tariff item 6909.12.90 as other technical ceramic wares for conveyance.

Boron Nitride Crucible for Technical Furnaces

Hexagonal boron nitride ceramic crucible for high-purity melting in semiconductor laboratories. This fired ceramic achieves a Mohs hardness over 9, qualifying it as a technical ware under tariff item 6909.12.90. It offers excellent thermal shock resistance for demanding applications.

Fused Silica Distillation Flask

Fused silica distillation flask for precise distillation in chemical research laboratories. The fired ceramic body reaches a Mohs hardness of 9 or more, meeting Chapter 69 criteria for technical ceramic wares. Its translucent, low-absorption properties make it ideal for handling volatile compounds.

High-Purity Alumina Evaporating Dishes

High-purity alumina evaporating dishes for solvent evaporation in chemistry labs. These 99.8% alumina ceramic dishes have a hardness equivalent to 9+ on the Mohs scale, qualifying as technical ceramic ware. They are chemically inert and thermally stable for laboratory use.

Silicon Carbide Laboratory Mortar and Pestle

Fired silicon carbide mortar and pestle set for grinding hard samples in analytical chemistry labs. Exhibiting a Mohs hardness of 9.5, this set qualifies as technical ceramic ware under tariff item 6909.12.90. It offers high resistance to acids and wear for demanding applications.

Silicon Nitride Laboratory Funnels

Fired silicon nitride funnels for filtration in harsh chemical environments. With a Mohs hardness exceeding 9, these funnels qualify as technical ceramic wares under tariff item 6909.12.90. They offer high corrosion and thermal resistance for laboratory use.

Tungsten Carbide Ceramic Grinding Discs

Fired tungsten carbide ceramic grinding discs for sample preparation in geological labs. These discs meet the 9+ Mohs hardness requirement, qualifying as technical ceramic ware under tariff item 6909.12.90. They are suitable for rock and mineral pulverization due to their durability.

Zirconia Grinding Media Balls

Sintered zirconia ceramic balls used in ball mills for fine grinding in chemical and pharmaceutical labs. These yttria-stabilized zirconia balls achieve a Mohs hardness of 9+, qualifying as technical ceramic ware under tariff item 6909.12.90. They are fired per Chapter 69 standards for durability.

Zirconium Oxide Analytical Boats

Sintered zirconium oxide ceramic boats for TGA/DSC analysis in materials laboratories. These boats have a hardness of 9+ on the Mohs scale post-firing, qualifying as technical laboratory receptacles under tariff item 6909.12.90. They feature precise dimensions for high-temperature testing.

3D Ferrite Core Memory Stack

A three-dimensional stack of ferrite core planes mounted on fired ceramic frames, used for high-capacity technical memory in minicomputers. The ceramic components are fired after shaping and serve a technical function, qualifying under tariff item 6909.19.90 as other ceramic wares for technical uses.

Alumina Ceramic Evaporating Dish

An alumina-based ceramic evaporating dish, fired for use in analytical chemistry, is employed to evaporate liquids and recover precipitates. Its high-purity alumina body resists chemical attack and thermal shock, making it ideal for laboratory processes. This product falls under tariff item 6909.19.90 as ceramic ware for laboratory use.

Alumina Ceramic Thrust Bearings

Aluminum oxide (alumina) ceramic thrust bearings for precision instruments in chemical analysis labs. Fired to achieve high compressive strength and electrical insulation for technical operations, these bearings are classifiable under 6909.19.90 as other ceramic wares for technical uses.

Boron Nitride Ceramic Bearing Rollers

Boron nitride ceramic rollers for vacuum laboratory systems and chemical reactors. Hexagonal BN structure fired for lubricity and thermal shock resistance in technical uses, these rollers are classifiable under 6909.19.90 as other ceramic wares for technical uses.

Ceramic Buchner Funnel

A perforated porcelain funnel designed for vacuum filtration in chemical laboratories. It is fired after shaping to withstand corrosive filtrates and high temperatures, making it a ceramic ware for laboratory use under heading 69.09.

Ceramic Evaporating Dish

A shallow, wide porcelain dish used in laboratories to evaporate liquids and concentrate solutions. It is fired after shaping, offering resistance to acids and high temperatures, and is a ceramic ware for laboratory use.

Ceramic Filter Crucible

A porcelain crucible with a porous base designed for filtering molten materials in technical laboratories. Fired after shaping, it is a ceramic ware for chemical or technical use under heading 69.09.

Ceramic Hybrid Deep Groove Ball Bearings

Deep groove bearings with ceramic balls and steel races imported as technical ceramic components for chemical machinery. Zirconia or silicon nitride balls provide key anti-corrosion properties, and the ceramic balls are classifiable under 6909.19.90 as other ceramic wares for technical uses.

Ceramic Melting Pot for Technical Use

A porcelain pot used for melting alloys or salts in metallurgical laboratories, offering high thermal resistance. It is fired after shaping and is a ceramic ware for technical use under heading 69.09.

Ceramic Mullite Boat for Technical Furnaces

A mullite ceramic boat, shaped and fired for holding samples in high-temperature technical furnaces, is used during material testing and sintering processes. Its refractory mullite composition withstands extreme temperatures and thermal cycling. This product is classified under tariff item 6909.19.90 as ceramic ware for other technical uses.

Ceramic pH Electrode Holder

A porcelain holder designed to secure pH electrodes in chemical testing setups. Fired after shaping, it is a ceramic ware for laboratory or technical use, classified under heading 69.09.

Ceramic Sintering Boat

A high-fired porcelain boat used for holding powders during sintering in technical ceramic production laboratories. It is fired after shaping and is a ceramic ware for technical use under heading 69.09.

Ceramic Technical Weighing Scoop

A porcelain scoop designed for precise powder weighing in pharmaceutical and chemical laboratories. Fired after shaping, it is a ceramic ware for laboratory use under heading 69.09.

Cordierite Ceramic Sagger for Technical Kilns

A cordierite-based ceramic sagger box, fired to protect samples in technical kilns during firing cycles, offers excellent thermal shock resistance. Its magnesium silicate composition provides stability at high temperatures, making it essential for industrial ceramic processes. This product falls under tariff item 6909.19.90 as ceramic ware for other technical uses.

Core Rope Memory Cassette

A modular cassette housing multiple ferrite core planes on ceramic substrates, fired for technical memory storage in industrial control systems. The fired ceramic substrates provide structural support and electrical insulation, making it classifiable under 6909.19.90 as other ceramic wares for technical uses.

Ferrite Core Memory Module

A ferrite core memory module consisting of a grid of tiny ferrite toroids arranged on ceramic substrates, fired after shaping to create nonmetallic magnetic storage elements. It falls under 6909.19.90 as a ceramic ware for technical uses, given its laboratory or industrial memory applications.

Industrial Ferrite Core Memory Bank

Multi-plane ferrite core memory bank mounted on fired ceramic frames for chemical process control technical applications. The ceramic frames are fired after shaping and provide thermal and electrical insulation, classifying it under 6909.19.90 as other ceramic wares for technical uses.

Lab-Grade Ceramic Gas Washing Bottle

A lab-grade ceramic gas washing bottle, fired with inlet and outlet tubes, is used for scrubbing gases in chemical laboratories. Its corrosion-resistant ceramic body handles reactive vapors, making it a durable alternative to glass. This product is classified under tariff item 6909.19.90 as ceramic ware for laboratory or chemical use.

Laboratory Ceramic Desiccator Plate

A porcelain perforated plate used inside desiccators to hold samples during moisture removal in laboratories. Fired after shaping, it is a ceramic ware for laboratory use, classified under heading 69.09.

Laboratory Porcelain Combustion Boat

A small porcelain boat used for sample combustion in elemental analysis laboratories. Fired at high temperatures for ash retention, it is a ceramic ware for laboratory use under heading 69.09.

Macor Machinable Ceramic Bearing Bushes

Macor glass-ceramic machinable bushes for prototype lab bearings and chemical fixtures. Fired microcrystalline structure allows post-firing machining for technical precision, making these bushes classifiable under 6909.19.90 as other ceramic wares for technical uses.

Military Grade Ferrite Memory Plane

Single-plane ferrite core memory on ruggedized fired ceramic base for defense laboratory simulations and technical data logging. The fired ceramic base provides stability and insulation, making it classifiable under 6909.19.90 as other ceramic wares for technical uses.

Porcelain Buchner Funnel for Lab Filtration

A porcelain Buchner funnel with fixed porosity, fired for vacuum filtration in laboratories, features a translucent low-absorption body. It is essential for separating precipitates and filtering solutions in analytical chemistry. This product falls under tariff item 6909.19.90 as laboratory ceramic ware.

Porcelain Crucible for Laboratory Use

A high-fired porcelain crucible designed for melting and heating substances in laboratory settings, featuring excellent thermal shock resistance and chemical inertness. It is a ceramic ware for laboratory use under heading 69.09.

Porcelain Distillation Head

A fired porcelain component used in laboratory distillation apparatus, offering chemical resistance and low absorption. It is a ceramic ware for laboratory use under heading 69.09.

Porcelain Gas Washing Bottle

A fired porcelain bottle used for scrubbing gases in chemical laboratories, with a fritted disc for efficient absorption. It is a ceramic ware for laboratory use under heading 69.09.

Porcelain Mortar and Pestle Set

A lab-grade porcelain mortar and pestle set used for grinding and mixing chemicals, with a translucent fired body absorbing less than 0.5% water. It is a ceramic ware for laboratory use under heading 69.09.

Porcelain Spot Test Tile

A glazed porcelain tile with cavities for chemical spot tests in analytical laboratories. Fired after shaping, it is a ceramic ware for laboratory use under heading 69.09.

Porcelain Watch Glass

A concave porcelain dish used for covering lab vessels, evaporating liquids, or as a lid in technical processes. Fired after shaping, it is a ceramic ware for laboratory use under heading 69.09.

Reaction-Bonded Silicon Carbide Bearing Races

RBSC ceramic races for custom technical bearings in chemical processing plants. Reaction-bonded and fired for dimensional stability in aggressive environments, these races are classifiable under 6909.19.90 as other ceramic wares for technical uses.

Silicon Carbide Ceramic Filter Crucible

A silicon carbide ceramic filter crucible, fired with an integrated filter, is used for separating solids in chemical filtration processes. Its high-melting-point carbide composition withstands aggressive chemicals and high temperatures. This product is classified under tariff item 6909.19.90 as ceramic ware for laboratory or chemical use.

Silicon Carbide Ceramic Sleeve Bearings

Silicon carbide ceramic sleeve (bushings) bearings for corrosive chemical processing equipment. High-fired for extreme hardness and chemical inertness in technical applications, these sleeves are classifiable under 6909.19.90 as other ceramic wares for technical uses.