1.ASTM A333 GR1，GR3，GR6 ASTM A335 P1，P5，P9，P11，P22，P23，P91 ASTM A213 T1，T5，T9，T91，T22，T11，T23,
2.DIN17175 15Mo3
Carbon Steel Seamless Pipes/Tubes:
1.API 5CT
2.API 5L
3.ASTM A53 ,A106, A179,A192,A199,A210,A213,A333,A334,A556
4.DIN 17175,1629,2391,2440,2393
5. BS 970,3059
Carbon Steel Welded Pipes/Tubes:
1. API 5CT
2. API 5L
3. ASTM A135,A53,A252,A500
4. DIN 2440
5. BS 1387
6. EN 39
7. JIS G3444,G3445,G3452,G3454,C8305,C3466
Stainless steel welded Pipes/Tubes:
1. ASTM A312, A358, A778 / ANSI B36.19 ,JIS G3459
2. JIS G3448 JIS G3468
3. ASTM A270 / JIS G3447
4. ASTM A249, A269 / JIS G3463
Stainless steel seemless Pipes/Tubes:
1. ASTM A312/A312M,ASME SA312/SA312M
2. ASTM A269 ASME SA269
3. ASTM A213/A213M,ASME SA213/SA213M
4. ASTM A790/A790M
5. ASTM A511
6. EN 10216,DIN17465,17458
