Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in steel diameter pipe diameter pipe roundness should not exceed 1% of the respective ends of the outer diameter, and the tolerance of ± 3mm. Diameter pipe material execution SY / T5037, GB / T9711, GB / T8163, American Standard ASTM A106 / A53 GRB, API 5L, APT5CT, ASTM A105, ASTM A234, ASTM A106, DIN German standards and customer requirements of the standard diameter pipe (size of the head) is applied to a pipe at the pipe reducer. Forming process commonly used to suppress necking, expanding repression or suppression of necking plus expanding the lowest carbon reducers, reducer certain specifications may also be stamping. Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in steel-diameter pipe in necking or expanding deform the pressing process, depending on the material and adjustable, to determine the use of cold or hot. Under normal circumstances, large diameter steel pipe reducer, maximize the use of cold steel reducers, but multiple adjustable and cause severe hardening of the case, the wall thickness of the case of partial thickness or alloy material should be hot pressure. In addition to stamping steel pipe outside diameter pipe for the raw materials to produce, on the part of the specifications of the reducer can be adopted with steel stamping process for production. Stretching die shape using a reference surface of the inner diameter pipe size design, with the steel stamping die cutting after the stretch forming. Reducing carbon steel seamless pipe prices, steel-diameter pipe, tube Ltd. Bohai provided by Cangzhou Bohai fittings. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) (www.hbbh628.com) strong, credible, and other industries in Hebei Cangzhou tee accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Cangzhou Bohai and you hand into the brilliant, for a better future!