Jiangsu precision seamless Specifications / supply seamless steel pipe Q235B common standard prices are generally divided into: SY / T5037-2000 (Ministry of standard, also known as general fluid pipes with spiral submerged arc welded pipe GB / T9711.1-1997 (GB, also known as the oil and gas industries - Steel pipe technical delivery conditions Part: A grade steel (to demanding GB / T9711.2 B grade steel)), API-5L (American Petroleum Institute, also known as line pipe; which is divided into two levels PSL1 and PSL2), SY / T5040-92 (pile with spiral submerged arc welded pipe) Q235B precision seamless company is China's largest seamless pipe distribution center, with intensive, large-scale, flexible technology, systems into one, Shandong Province metal pipe materials system large-scale circulation enterprises. the company's existing inventory tons, more than three thousand kinds of specifications, and customized for the user and a variety of non-standard seamless seamless Main implementation of standards: 10 #, 20 #, 35 #, 45 #, 20GGB5310-95, St45.8-Ⅲ, GB8162-1999, GB8163-1999, GB3087-1999, GB9948-88, GB6479-86, GB8312-85, 16Mn, 27simn, 15crmo, 35crmo, cr5mo, 40cr, 10crmo910,12cr1mov, 12crmov, A335P22, D240, D250, N80,15mnv, A335p91,30crmnsi so on.