Provide q345 q345 where large-diameter seamless steel pipe seamless steel pipe of good quality large diameter smooth Liaocheng 
 Low-alloy tube: Q345B, Q345C, Q345D, 16Mn, 30MN, 27SiMn, 20Cr, 40Cr 
 High Pressure Boiler Tube: 20G, ST45.8-111, A106B, A106C 
 Main implementation of standards: GB/T8162-2008, GB/T8163-2008, GB3087-2008, GB5310-2008, GB6479-2000, GB9948-2006, GB5312-2008 
 The company arrived in round 3,000 tons, material Q235, Q235B, 16Mn, 20 #, 45 #, 30Mn, 27SiMn, 45CrMo, research 102,30 CrMo steel and so on. Fax 022 -26821277 E-mail: wwwtjtswy@126.com 
 Applies to: structure, fluid transport, machining, pipe piles bridges, high-pressure boiler tube, low-pressure boiler tubes, cylinders, hydraulic pillar, oil, petrochemical, shipbuilding and other industries use steel.