... pictures of our production for your referenceProducts of our Molded epdm rubber o-rings, washers that meet international ... developing mould, testing sample, producing mass production, printing, packaging, to sales service integration, all processes are made by ourselves ... INSTRUM LTD; 4SITE ELECTRONICS; HOMEWARE PLASTICS CO., LTD, etc. Our advantages of making Molded epdm rubberts o-rings :1. We ...