9-1/2″ diameter 18-gauge galvanized Drums, suportado ng 1" OD steel tubing, malawakang ginagamit para sa Self Storage Roll Up Door at Mini Warehouse Garage Doors.
9-1/2″ diameter 18-gauge galvanized Drums, suportado ng 1" OD steel tubing, malawakang ginagamit para sa Self Storage Roll Up Door at Mini Warehouse Garage Doors.
Lahat ng Drums ay nilagyan ng grease filled shielded radial ball bearing para sa mas maayos na operasyon at mabawasan ang friction at wear.