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Video Description #detail_decorate_root .magic-0{border-bottom-:solid;border-bottom-color:#bbb;font-family:Roboto;font-size:24px;color:#000;background-color:#bbb;font-:normal;border-bottom-width:2px;padding-top:8px;padding-bottom:4px}#detail_decorate_root .magic-1{vertical-align:top}#detail_decorate_root .magic-2{vertical-align:top;display:block;padding-right:4px;box-sizing:border-box;padding-left:4px}#detail_decorate_root .magic-3{vertical-align:top;padding-bottom:4px;box-sizing:border-box;padding-top:4px}#detail_decorate_root .magic-4{padding:0;margin:0;white-space:pre-wrap;font-size:14px}#detail_decorate_root .magic-5{width:750px}#detail_decorate_root .magic-6{overflow:hidden;width:750px;height:1125px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-7{margin-top:0;margin-left:0;width:750px;height:1125px}#detail_decorate_root .magic-8{overflow:hidden;width:750px;height:817.5px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-9{margin-top:0;margin-left:0;width:750px;height:817.5px}#detail_decorate_root .magic-10{overflow:hidden;width:750px;height:1153.3333333333335px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-11{margin-top:0;margin-left:0;width:750.0000000000001px;height:1153.3333333333335px}#detail_decorate_root .magic-12{overflow:hidden;width:750px;height:1520px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-13{margin-top:0;margin-left:0;width:750px;height:1520px}#detail_decorate_root .magic-14{overflow:hidden;width:750px;height:468.75px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-15{margin-top:0;margin-left:0;width:750px;height:468.75px}Product DescriptionThe roller chain coupling utilizes a common chain and is engaged with two parallel sprocket wheels of the same number of teeth. The main difference between the different types of roller chain couplings is the use of different chains. Commonly used are double row roller chain couplings, single row roller chain couplings, toothed chain couplings, nylon chain couplings. And so on. #detail_decorate_root > div:not(.engine-app),.engine-app > div{margin-top: 10px;} #detail_decorate_root .icbu-pc-detailSellerRecommend .header { height: 30px; line-height: 30px } #detail_decorate_root .icbu-pc-detailSellerRecommend .header > a { float: right; marginRight: 10px } #detail_decorate_root .icbu-pc-detailSellerRecommend .header > span { font-size: 14px; font-weight: 700; padding-left: 10px; display: inline-block } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content { width: 25%; float: left; padding: 0 10px 10px; box-sizing: border-box } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content.clear-left { clear: left } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content.column-3 { width: 33.33% } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content > a { text-decoration: none; display: block } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content > a > div { height: 167px; background-size: contain; background-repeat: no-repeat; background-position: 50% } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content > a > div.column-3 { height: 200px } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content > a > h3 { width: 100%; padding-top: 5px; font-size: 14px; color: #333; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; line-height: 16px; font-weight: 400 } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content > a > h3 .price { color: #ff7519; font-weight: 700 } #detail_decorate_root .icbu-pc-detailSellerRecommend .seller-recommend-content > a > h3 .unit { color: #999 }