... years of making door locks experiences, like privacy door lock, roller shutter door lock, closet lock , security door lock, tubular door lock ... production capacityt is 250,000 pieces each month. Name:Center Shutter LockItem No:JF-J17Case Size:155*55*13mmCylinder Dia:25mmLocked ... -10yearsQuality Standard:QB/T2476-2000Monthly production capacity:250,000pcs Center Roller Shutter Door Lock JF-J17