Henan Tong Zheng Industry Co., Ltd. specializes in drilling and oil production equipments include Wellhead and Christmas tree, Tubing head, Casing head, Choke and Kill manifold, Drilling fluid circulation manifold, Gate valves, Choke valves, Check valves, Stop valves, Mud valves, BOP, Drilling accessories and tools, also measuring flow meters. Its products are sold to major oil fields at home and some abroad. As a first network make unit of Sinopec and CNPC, it is devoted to serving Sinopec and CNPC.

We have got the manufacture license for special equipment production from General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China and passed API SPEC Q1 and ISO9001 quality system certification, achieved API SPEC 6A, API SPEC 16A, API SPEC 16C technical specification certification and have the right to use API logo. We are capable of designing, developing, and producing and have many types of NC machining equipments, physical and chemical laboratory, non-destructive testing laboratory, gas seal and strength test means.

We believe "dedicating, pragmatic, pioneering and innovative" and supply products with high quality and good service to satisfy our customers.