Neihuang County Petroleum Machinery Co., Ltd.

Neihuang County Petroleum Machinery Co., Ltd. (内黄县石油机械有限公司) is a Chinese manufacturer of API 16C and API 6A-certified well control and wellhead equipment located in Neihuang County, Anyang City, Henan Province. The company specializes in choke and kill manifolds, choke valves, gate valves, wellhead assemblies, and related pressure control equipment used in oil and gas drilling and completion operations. Neihuang County is home to a concentration of petroleum machinery manufacturers that supply both domestic Chinese oilfields and export markets. With dual certification in API 16C (well control equipment) and API 6A (wellhead and surface safety equipment), the company manufactures products for well pressure control applications including blowout prevention support systems. Products are used by drilling contractors and operators in onshore oil and gas operations across China and internationally. The company's API 16C certification covers choke and kill manifolds, the critical pressure control equipment used in conjunction with blowout preventers to manage well pressure during drilling operations.