... steel butt weld pipe fitting (butt weld pipe fitting, stainless steel butt weld fitting )Features: 1. Type: butt welded and seamless pipe fitting2.Size ... , 347H , DUPLEX2205, S31803,904L,)6.Applications range: For use in the petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler ...