Credit 3A level enterprise certificate |
National steel and iron profession 3A level enterprise |
China petroleum petrochemistry enterprise network database member certificate |
American Classification Society |
Det Norske veritas approval OF Manufacturer Certificate |
Certificate For Product Conf Ormity |
Certificate For The System Of Inspection Measurement And Test |
Certificate of Adopting International Standards |
England classification society |
England fatigue authenticates
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Standardized good behavior certificate
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French classification society1
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French classification society |
German classification society |
German fatigue authenticates |
ISO 9001 2000 Standard |
Occupational Healthand Safety Management Syetem Certification |
Russia authenticates |
Ped Certificate |
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