Henan Zhongyuan Heavy Forging Co., Ltd
HHF is state-level high-tech enterprise, which has the forging, heat treatment, petroleum equipment, mechanical processing four production plants, a laboratory, a provincial technology research and development center. HHF has got license of API 7-1. Also, HHF was certified CSSC quality, ISO 9001:2015, ISO/TS29001 International Quality System.