Steel Pipe Co., Ltd. Liaocheng Runtong Main national standard and American standard seamless steel pipe, the main product is 10 #, 20 #, 35 #, 45 # seamless steel pipe, structure seamless pipe, seamless steel pipe for low and medium pressure boiler , Seamless steel tubes, high-pressure boiler seamless steel tubes, seamless steel tubes with high pressure chemical fertilizer equipment, line pipe, seamless steel pipes for high temperature, transmission fluid with stainless steel seamless pipe, all kinds of alloy pipe 16Mn, 27SiMn, 15CrMo , 40Cr0Mo, 12Cr1Mo. Implementation of technical standards for products: GB8162-1999, GB3087-82, GB8163-1999, GB5310-1995, GB5312-1995, GB6479-1999, API 5L, ASTM A106, GB14976-94. Specifications are: Φ 6mm-Φ 610mm * 1mm - 30mm