we will make NDT inspection. About elbows, usually we use ultrasonic test by a certain percentage. If client needs special requirement,we will make as per their requirement.
1:WH: SCH20, SGP, STD, SCH40, SCH80, SCH160,XS,XXS
2:Size: 1/2"-72"
3: Standard: ANSI B16.9/16.28, ASTM,API 5L, DIN2605/2615/2616, JIS P2311/2312 ASME B36.10M---1996
4: Material: ASTM A234 WPB
5:Surface treatment: black rust-proof oil, transparent oil, hot galvanizing
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