Qingdao Qinlong Industries,Inc is the highly respected manufacturer who has been supplying boat builders, OEM manufacturers and importers for over 30 years. The items are completely made in stainless steel 316, unless otherwise stated( i.e.galvanized, or SS304 ). If you prefer, we are able to supply you Certificate of Product Material for your orders. Material of products are tested by Olympus Vanta Analyzer.
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