 3801909000 
其他以石墨或其他碳为基料的制品
Other preparations based on graphite or other carbon (in the form of pastes, blocks, plates )or other semi-manufactures |
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3801100010
核级石墨
Nuclear graphite(the purity is higher than 5/million boron equivalent, the density is bigger than 1.50g/cm3) |
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3801100020
人造细晶粒整体石墨
Artificial fine-grained graphite(Density, tensile fracture strain, coefficient of thermal expansion in line with specific requirements at 20℃or below) |
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