Zhongyuan Oilfield Huayuan Company applied advanced semiconductor lighting and solar energy technology to develop a series of LED explosion-proof, solar energy and other environmental protection and energy-saving lamps suitable for use in high-risk locations in the petroleum and petrochemical industries, with advantages of low power consumption, safety, and long service life. , And energy saving 60% to 70% compared to traditional light sources. Brake Valves,Brake Valve,Parking Brake Valve,Brake Valve Assembly Zhejiang Haihong Hydraulic Technology Co.,Ltd. , https://www.haihong-hydraulic.com