... , reduced rubber joints, rubber elbows, fan coil joint, sewage check valve rubber, rubber filter, rubber ... expansion joints, bellows, waterproof sleeve tube, power delivery Joint, limit expansion joints etc.Registered trademark "Changmao" brand ... in many key prestigious projects, and exported to the U.S., Germany, Italy, Japan, Korea, Egypt, Spain ... Kgf/cm2)3.0(30)4.8(48)5.5(55)Vacuum KPa(mmHg)53.3(400) ...