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JIS G 3461 Carbon Steel ji esi mmiri ọkụ na Okpomọkụ Tubes - IPS-M-PI-190(3)
- BS EN 10163-3: 2004
- NACE MR0175/ISO 15156-1
- A312M
- A1085/A1085M-15
- ASTM-A532
- AWWA C213
- 美国ASTM-标准A-501
- Ọkpọkpọ Zinc etinyere oji na nke na-ekpo ọkụ
- JIS-G3452
- ASTM A501_A501M
- ọkọlọtọ victaulic grooved ọkpọkọ
- EN10255
- BS-1387
- DIN-EN-10220
- ASME B16.25-2017
- ASME B36.10M-2018
- TS EN 10084 2008
- Sanon pipe main grade — alloy pipe & carbon pipe
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