COVNA havs invested in quality assurance, state-of-the-art machining and testing facilities in order to assist customers in safely controlling their processes.
All products have to pass strict inspection before they go out, covering raw material check, in production check, semi-finished product check, sampling check and pre-delivery inspection.
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Learn more about us, please feel free to call us at +86-15622261856 (Whatsapp/ Wechat)
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