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| IS09001:2000 |
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| Manufacture license of Special of Equpment PRC |
TS2710B71-2016 |
| PED9723EC |
01 202 CHI/Q-06 0218 |
| AD2000-W0 |
01 202 CHI/Q-06 0218 |
| ABS |
SQIC86533-X1 |
| GOST R(stainless pipefitting) |
0076969 |
| Welding Procedure Approval Report（TUV） |
C 153096774-1 |
| Bank credit AAA |
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| ITA Certification |
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