... located between Zhengzhou and Luoyang, great convience of transportation depend on the Longhai Railway, 310 National Highway, . Great Poet ... reduced rubber joints, rubber elbows, fan coil joint, sewage check valve rubber, rubber filter, rubber compensator air flue compensator, ... 21545018255162522155002025516252215600242601625221570028320162on high building , bracket support or fixed equipment for pipes , or ...