| Butt-welding pipe fitting in different materials --- stainless steel,alloy steel and carbon steel,for high pressure,medium pressure and low pressure pipeline.
•ASME B16.9 16.28, ASTM A234 WPB, SCH20, SCH40, SCH80, STD, XS, XXS.
•JIS2311 AND 2312 SGP, SCH20, SCH40, SCH80
•DIN2605, 2615, 2616,2617.
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