Wulian Yida Metalwork Corp. has been the outstanding manufacturer in special shape and small diameter seamless steel tube since 1998. The factory owns 11 cold rolling machine and 8 cold drawing machines. The annual production capacity is over 20000 tons. The products are mainly customized for the fantastic manufactures in car & truck, hydraulic equipment, textile machinery and agricultural equipment, etc. The company strictly implements ISO9001: 2008 international quality assurance system, and has perfect quality inspection method from material procurement to product storage. The company is equipped with torsion testing machine, tensile testing machine, hydraulic universal testing machine, chemical testing machine, steel pipe ultrasonic flaw detection equipment to ensure the quality of product.