Quartz and silica electrothermal products
3366001 Fused quartz products 3366002 Fused silica products 3366006 Fibre, fused quartz or silica 3366015 Fibre optics materials, fused silica 3366016 Components, silicon nitride, for engineering uses 3366017 Tubing, capillary, fused silica 3366018 Tiles, silica 3366019 Pump components, silicon nitride 3366020 Sheaths, muffles, bowls and containers, quartz, industrial 3366021 Insulating materials, fused quartz wool 3366022 Moulded components, fused quartz 3366025 Quartz products for nuclear reactors 3366027 Quartz boats, semiconductor production 3366028 Quartz chambers, single process, semiconductor production 3366029 Quartz crucibles 3366040 Silica, fused/silica glass/vitreous silica
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