Since its establishment, the company has consistently adhered to the principle of “quality is the life of the company” and gradually improved the quality assurance system. The physical and chemical laboratory was established, and ultrasonic testing, eddy current testing, hydraulic testing machine and other equipment were added. At the same time, more than 30 professional technicians were equipped to control the quality, so that the raw materials from the company to the finished product were all in accordance with the quality assurance department. ISO9001 controls to ensure that the product qualification rate reaches 100%.