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Gardner Spring - Extension Spring: 0.437″ OD, 8.5 lb Max Load, 5.83″ Extended Length, 0.0475″ Wire Dia - 91664599 - MSC Industrial Supply
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Everbilt 5/8 in. x 6-1/2 in. and 15/32 in. x 4-1/2 in. Zinc-Plated Extension Spring (4-pack) 16071 - The Home Depot
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Everbilt 1/4 in. x 1-1/2 in. and 11/32 in. x 1-7/8 in. Zinc-Plated Extension Spring (4-pack) 16086 - The Home Depot
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Extension Springs With Hooks Ends Steel Tension Spring Wire Diameter 2mm 2.3mm Outer Diameter 12/13/15/16/18/19/20/22/25mm - AliExpress
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110 lb. Heavy-Duty Double-Looped Garage Door Extension Spring (2-Pack) – Garage and Sliding Door Hardware
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Handyman Springs SP 9618 Extension Spring, Spring Steel Construction, Nickel-Plated Finish, 0.072 GA x 5/8 In. x 3-1/4 In., Single Loop Open, (2 Count) - Screen Door Hardware - Amazon.com
![Extension Springs | ISO 9001 & ISO 14001 Certified Metal Springs Manufacturer Since 1987 | Tech Spring Manufacturing Corp. Extension Springs | ISO 9001 & ISO 14001 Certified Metal Springs Manufacturer Since 1987 | Tech Spring Manufacturing Corp.](https://cdn.ready-market.com/106/b33e668a//Templates/pic/EXTENSION-SPRINGS.jpg?v=11b4fb47)
Extension Springs | ISO 9001 & ISO 14001 Certified Metal Springs Manufacturer Since 1987 | Tech Spring Manufacturing Corp.
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