... quantity in stock 4.Color box package Bicycle sprockets and chains,Features:1) International standard with high quality and durable working ... drawing or smple.About us,Tianjin HAORONGSHENGYE Electrical Equipment Co.,Ltd was founded in Tianjin in 2008 and is a professional ... gear, spur gear, bevel gear, gear rack, worm gear, sprockets,chains, bearings.Our factory,Welcome to your inquiry and trial order ...