API 30'' hot expand carbon seamless steel pipe Size:3/8"-32"*SCH10-SCHXXS Standard:DIN,JIS,ASTM, ... range petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler heat, exchanger, gas metallurgy, shipbuilding, construction, etc.Min Order Quantity10 ... under the ISO9001:2000 strictly. API 30'' hot expand carbon seamless steel pipe