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    1. At Yuanyang, quality is our first priority. We purchase the raw materials only from well-known brands, and have set strict inspection procedures in the production line. The raw materials are marked with different colors so that they are easily distinguished; and 100% spectral detection is conducted for all of the finished fittings before shipping.
    1. Except few special products, most of the pipe fastener products we provide are manufactured in other factories, not directly by Yuanyang. Clients can raise their specific requirements for fasteners and we will purchase, assemble, and test the products for users according to their needs.