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Taian City Chengong ImportExport Co.,Ltdis one branch company of Wansen Group, which has other three branches, respectively is Taian City dingxin mining equipment co., LTD., Taian City Julong machinery equipment co., LTD and Wansen network technology company. Mechanical equipment and accessories are the domestic industry technology leader. In the process of production, the company products are according to ISO9001 series standard and set up quality assurance system, stresses the physical form of quality management, gradually formed a perfect quality assurance system, in addition, the company also established the perfect and reliable after-sales service guarantee system, in line with the user first, the principle of the supremacy of customers to guide the companys production and management ...


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