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Replacement Drum for Torsion Spring of Garage Door Competitive Price Lifting Cable Drum. Factory Direct Supply: Direct manufacturer with own molds, ensuring quality control and competitive pricing. Customization Support: OEM/ODM available with full customization from designs or samples. Strict Quality Testing: 100% inspection including material, torque, load bearing, and lift height tests. Fast Delivery: 10-25 days for 20ft container with fully mechanized production efficiency. Free Sample Policy: Free samples for a few pieces; buyer only pays for freight.