... Corning, Lanxess AG, and Baosteel. All of our rubber products are certified to ASTM, DIN, JIS, AMS and MIL ... manufacturing various rubber products, plastic products, silicone products, zinc / aluminum alloy products with more than 10 years. From designing drawing, developing mould, testing ... PLASTICS CO., LTD, etc. Our advantages of making Molded epdm rubber seal :1. We have our own professional mold ...