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   Shenzhen Chong Hing Hardware Spring Co., Ltd. located in Longgang, Shenzhen, the main production are: springs, metal, car parts. Spring classes: Spring / precision spring / extension spring / torsion / spring / double spring / stainless steel spring / computer spring / positive and negative spring / battery spring / shaped spring / copper, beryllium copper spring sports stopwatch / button spring / pedometer gossamer spring / car antenna / TV antenna / cell phone antenna / antenna spring. Hardware: shrapnel / cells / c...More
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