延安守山机械制造有限公司
Yan’an Shou Shan Machinery Manufacturing Co., Ltd. was founded in March 2001, occupies an area of 80,000 square meters with its registered capital of RMB81.5 million. The products obtained the ISO 9001 certification (Certificate No.: 00211Q15974ROM) in 2008 and the API spec Q1 certification in 2009(Certificate No.: pumping unit API 11E-0185, sucker rod API 11B-0092, tubing & casing API 5CT-0992).
Website：www.yassjx.com