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2019-11-23ISO 9001 quality system certification, ISO 14001 environmental management system certification, OHSAS 18000 occupational health and safety management system certification, eu CE certification, pressure vessel PED directive, API certification...
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2019-8-7Shanghai quality inspection institute hosted a seminar on valve flow resistance index and energy efficiency evaluation standard
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2019-8-7The announcement of the state administration of market supervision on the requirement that explosion-proof electrical products should be changed from production license to compulsory product certification management
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2019-8-7Principle of ultraviolet aging test box and matters needing attention
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2019-8-7Yongjia county convened the valve industry international market development symposium