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Ltd. is the only partner of German petrochemical in china. The company through the ISO 9001 international quality system certification, and in strict accordance with the requirements of the quality system to control the production process. In the control of product standards, strictly abide by the American Petroleum Institute API and the American Society of Automotive Engineers SAE standards for the formulation design, production process control and inspection, the quality of the products are guaranteed, the quality of products beyond the level of the general brand.