The mall is specialized in the production and sales of high-purity experimental products for "scientific research institutes, universities and other" scientific research institutions and laboratories. When purchasing high-purity industrial products for production in non low-cost factories, relatives should buy them according to their own actual use to avoid "claiming" that they can also enter the laboratory as experimental products and the same industrial production products, which will affect the accuracy and accuracy of experimental results.

250-200-0.05mm (10) in the option is equivalent to graphite paper with length of 250mm, width of 200mm, thickness of 0.05mm and quantity of 10 pieces. Other specifications in the option also mean the same.