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Color classification: high purity diaphragm 0 03*50*50mm, high purity sheet 0. 02*100*100mm, high purity sheet 0. 03*100*100mm, high purity sheet 0. 05*100*100mm, high purity sheet 0. 1*100*100mm, high purity sheet 0. 1*120*120mm, high purity sheet 0. 15*100*100mm, high purity sheet 0. 2*100*100mm, high purity sheet 0. 3*100*100mm, high purity sheet 0. 4*100*100mm, high purity sheet 0. 5*100*100mm, high purity sheet 0. 8*100*100mm, high purity sheet 1. 0*100*100mm, high purity sheet 1. . 5*100*100mm, high purity diaphragm 2. 0*100*100mm, high pure silk 0. 5mm* 1m, high pure silk 0. 8mm* 1m, high pure silk 1. 0mm* 1m, high pure silk 1. 2mm* 1m, high pure silk 1. 5mm* 1m, high pure silk 2. 0mm* 1m, high pure silk 2. 5mm* 1m, high pure silk 3. 0mm* 1m, high pure silk 4. 0mm* 1m, customized specifications