Cold Drawn Seamless High Pressure Boiler 
 Steel: 20G 
 CrMo 12Cr1Mov Size: 28-76 * 2-12 GB5310-1995 
 Use: Manufacturing and above high pressure water tube boiler heating surface and the heating surface of boiler water wall and high-quality carbon steel, alloy steel, with seamless steel pipe! 
 Steel Pipe Co., Ltd. Liaocheng Runtong 
 Main national standard and American standard seamless steel pipe, seamless steel tubes for structural main products, low and medium pressure boiler seamless steel pipe, Seamless steel tubes, high-pressure boiler seamless steel tubes, seamless steel pipe with high pressure chemical fertilizer equipment , line pipe, seamless steel pipes for high temperature, transmission fluid with stainless steel seamless pipe. 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.