Factory Direct DN250 * 8 300 20 # pass cabin casing, steel casing offer the fastest through the cabin excellent marine marine casing through the casing cabin quality. Marine through cabin casing: Marine JIS Japanese standard carbon steel casing sleeve casing Marine JIS specifications DN15 DN20 DN25 DN30 DN50 DN60 DN80 DN100 DN125 DN150 standards GB American standard German standard Japanese company specializing in the production of samples DN200 * 8 300 Marine Typically casing, casing through cabin selling cheap Cang Sheng Hebei Pipe Manufacturing Co., Ltd. all staff welcome your call to discuss business, to high-quality, low-cost service to provide you with the most! Marine tanks produced through casing are made of carbon steel (Q235,10 #, 20 #), steel (16Mn Nanchong stainless steel casing 304 through the cabin factory, Q345R, Cr5Mo Nanchong 304 stainless steel tube plant through the cabin, 15CrMo, 15CrMog, 12Cr1MoV Nanchong stainless steel casing 304 through the cabin factory, 12Cr1MoVg etc.), stainless steel (321,304,304L, 316,316L, etc). DN100 through cabin thickened casing, casing Nanchong, Cang Sheng Pipe from Hebei Cang Sheng Pipe Manufacturing Limited. Cang Sheng Hebei Pipe Manufacturing Co., Ltd. (www.csyrb.com) (www.hbcsgj.com) strong, credible, Hebei Cangzhou elbow industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Cang Sheng Pipe into the brilliant and you work for a better future!