Adjustable close velocity: 180 - 15 .Adjustable latch velocity: 15 - 0 Applicable to left-open & right-open .Two Separate Valves For Close & Latch Speed Adjustment. .The maximum opening....
The DOORCONTROL FACILITY MANUFACTORY OF CHONGQING NO.136 GEOLOGY PROSPECTING TEAM ( subordinate to Chongqing Coal Group Corporation) is engaged in production and development of door closers, and is....