Jilin 20 low and medium pressure boiler tube% Changchun 20 low-pressure boiler pipe prices Harbin 20 low and medium pressure boiler pipe factory 
 Low and medium pressure boiler tube perforation made by ingot or solid tube capillary, and then allocated by the hot-rolled, cold rolled or cold made. Seamless steel pipe has an important position in China's steel industry. 
 Low and medium pressure boiler tubes: used to manufacture a variety of low and medium pressure boiler, superheated steam pipe and tube in boiling water, the water wall tube and locomotive boilers, superheated steam pipe, opium pipe, small pipe and arch brick pipe. High-quality carbon structural steel hot-rolled or cold-rolled (allocated) seamless steel pipe. 10, 20 steel manufacturing, to do the hydrostatic test in addition to ensuring the chemical composition and mechanical properties, curling, flaring, flattening test. Hot-rolled, hot rolled condition, delivery, cold-rolled (allocated) to heat treatment delivery. www.tjtswy.com 
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