insulating materials: aluminum, copper, PVC, PET, kraft paper, sponge jacket, pearl cotton jacket. The main ... 1, shock-proof products: rubber mat, 3M, EVA, high foam.2, insulating materials: aluminum, copper, PVC, PET, kraft paper, sponge jacket, pearl ... cotton jacket.3, glue products: a variety of electronic, electrical, phone pad, silicone paste, double ...