Goods: carbon steel seamless pipe Standard: API 5L/API 5CT Diameter: 17.1mm-2032mm W. ... ,St52.4STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49Applicationpetroleum, construction ,shipbuilding,smelting, aviation, power, foodstuff, chemical, medical equipment, boiler heat ... :0086-22-27595690Mobile:0086-13212225666 API 5L/5CT A106B casing pipe