Puyang Zhongshi Group Co., Ltd. was founded in 1996 and is the restructured enterprise of the Central Plains oilfield branch company of SINOPEC. The company registered capital is 60.83 million yuan, with an annual output value of 200 million yuan, and 580 employees, including more than 160 technical and administrative staff. Oil machinery is our main product, the leading products include a pumping unit, subsurface sucker rod pump, wellhead (Christmas Tree), pressure vessels, drilling solid control series products, and cementing accessories. We attained ISO 9001 in 1998 and API Certificates in 2002.