◆OTP sealing technology development Co., Ltd.—Professional rubber seals manufacturer, Taiwan factory is located in Kaohsiung, Taiwan, mainland factory is located in Chuzhou, Anhui Province. _Walding Top-Production and Sales: O-ring, star/X ring, ED ring/pipe joint seals, rubber balls, skeleton oil seals, polyurethane oil seals, Teflon retaining ring retaining rings, combined gaskets, APA, PDU, LBH, MYA * rubber flat gaskets and special rubber parts customized.