Drawn Glass Base Plate for Optical Bench
Precision rectangular drawn glass plate, 5.5 mm thick, 0.15 m², serving as stable base for optical experiment benches. HTS 7004.90.30.20 covers this as unworked blown/drawn sheet glass over 5 mm in small rectangular shape. Thickness provides rigidity for lab alignment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for laboratory apparatus use post-fabrication
If cut to specific lab equipment shapes, it becomes laboratory glassware in 7017.
If uncolored cast glass equivalent
Cast glass sheets without blowing/drawing process stay in 7003 unworked.
If area between 0.65-10 m²
Larger sheet areas in same specs move to upper size subheadings in 7004.
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Import Tips & Compliance
• Supply annealing certificates to confirm no post-process workings
• Declare exact shape as 'rectangular' with photos; squares may be scrutinized
• Avoid bulk packaging that implies sets, risking 7019 or article headings
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