Jiangsu Yidelong Petroleum Machinery Co., Ltd. mainly produces high and medium pressure series valves. The main technical performance parameters are nominal pressure pn2.5-140mpa and nominal diameter dn3-500mm; Provide various specifications and models of production (gas) wellhead equipment, water injection wellhead, fracturing wellhead, casing head, tubing head, kill manifold, choke manifold, drilling fluid manifold, drilling and production accessories, pneumatic pressure test pump, section control box, BOP and surface BOP control device and other products.