LONGKOU CHENGFENG ZHIYUAN TECHNOLOGY Co., Ltd is the professional manufacturer of water treatment multi-way valve, household valve, dosing pump and distributor. Our products have independent intellectual property rights, authorizing several PCT international patents and domestic invention patents, practical new patent and appearance patents, hoping that we can have the opportunity to cooperate with you. CHENGFENG owns manufacturing sites under strict management, better production equipments which means one step ahead. CHENGFENG is using the world-leading level machinery, focusing on every detail, operating more standard, grasping more precise, starting from marketing, R & D, manufacturing, sales to after-sales service, all strictly executing under the provisions of the Quality Manual, fully implement the TPM, TMQ, PDS, combining with the visualized operation management, ensuring high efficient working, all the factories passed the ISO9001 quality management system, ISO14001 environmental management system, OHSAS18001 production safety system.