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Fangqian Village, Tangxi Town, Yinzhou District, Ningbo, Zhejiang, China (Mainland)
1-3/4Universal thread right winding set garage door torsion spring, US $ 1 - 10 / Pair, Zhejiang, China, WT, WT-D1013.Source from Ningbo Well Lift Door Co., Ltd. on Waimaotong.com.