... valve, valve, butterfly valve, pipe expansion joints, bellows, waterproof sleeve tube, power delivery Joint, limit expansion joints etc.Registered trademark "Changmao" brand, ... absorber,soft joint etc Consist of inner rubber,Jinlun reinforced rubber and loose metal flange,ith high pressure chracter, good elasticity, ... 0400122535520403030300122004451625400204030Rubber Expansion Joint