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Compression Spring for Coal Mining Machinery
We produced some kinds of Coal Mining Machinery Springs for safety valve,control valve, three-way valve and so on.They strongly pressed for 24 hours and tested for 3000 times.No distortion,no rupture.They are used to each coal machine enterprise.
1.Applications: safety valves, control valves, tri-valves, hydraulic control check valves;
2.Tested with force of 30,000lbs for 24-hour period ;
3.Fine craftsmanship to each coal machine enterprise.
Please send us drawing for review when inquiry.