... and then jointed with bolts. Introduction of FlangeSpecializes in producing flanges, forged under the craft into flange, steel flange, classfied by customs ... slip-on”, “boss””lap joint”, “ socket weld”, “threaded” and also “blind”.We export to America, Canada, Germany, Spain,nertherland ... E, Malaysia , Japan, South Korea and Taiwan,so on.And we won praise and trust from customers. We can also ...