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ABOUT
Qualification
Value
Produce
QC
PRODUCT
Ball valve
General valve
Special valve
Other valves
NEWS
Download
TALENT
CONTACTS
Qualification
Value
Produce
QC
Russian certification
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API Certificate
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Petroleum Technology Equipment Center of China Equipment Management Association
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China Urban Heating Association
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China City Gas Association
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quality certification
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Occupational health and safety management system 28001-18001
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EU CE certification
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business license
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Class A TS Certificate
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Environmental management system certification
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Industrial and Commercial Change Certificate
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