st52.4 seamless tube 2.material:Astm a 53/106/ API 5LA/B ... and guide the development of product technolog orientation. Seamless Pipe Typest52.4 seamless tubeSize1/2"-36"Wall thicknessSch5-Sch160XXSStandardASME B36.10M ... ,smelting, aviation, power, foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas metallurgy, etc.Min Order Quantity1 tonsDelivery Time25 days after ...