it is an enterprise that produces and sells hydraulic quick joints, pneumatic quick joints, hydraulic pipe joints, hydraulic valves and hose assembly into an integrated industry and trade. 12 new energy-saving and environmentally friendly investment casting production lines, 4 natural gas heat treatment lines, and 1 fully automatic shell lubricating assembly line, with an annual output of more than 20,000 tons, which can meet the needs of customers with different procurement volumes. video,movie