Plastic machinery industry's technical threshold

China Haitian Group, located in Ningbo, Zhejiang, is the largest plastics machinery manufacturer in the country and even in the world. Last year, its sales reached 3.28 billion yuan, accounting for more than 20% of the total sales of the plastics industry in China. Surprisingly, when talking a

Regulating pump flow to determine

Abstract: Regulator pump is a fire pump for automatic sprinkler system and fire hydrant water supply system pressure stability, the system pressure is always in the required pressure state, once the nozzle or fire hydrant water, that can flow out to meet the fire water Need water and water

Successful presulfiding of hydrogenation catalyst

Developed by China and currently the country's largest 3,000-ton/year hydrogenation catalyst external pre-sulfurization industrial device, it was completed and completed industrial trial production at the China Petroleum & Chemical Research Institute of Fushun Petrochemical recently. I