... QA Equipment 3.OEM/ODM 4.industrial diaphragm industrial Rubber industrial diaphgram Product Namerubber industrial diaphragm CertificateISO9001:2000Country of OriginChinaAdvantageA. Ozone ... PTFE, Silicon, etc. Can choose on your requirement;Color Black, red, yellow, brown, white, green, violet etc, ... Good function of sealing and attenuating shock9) EPDM70 Black (E7001Z59) can meet NSF WRAS KTW DVGW(W270 ...