炼轮 Stabilizer

凸轮轴正时炼轮 Camshaft sprocket

曲轴正时炼轮 Crankshaft sprocket ; Crankshaft timing gear

菊炼轮 daisy chain wheel

黑炼轮花 black chamomile

炼接滑轮 chain-and-tackle block

密炼机齿轮油选购指南 Mixer Gear Oil Selection Guide

菊轮炼 daisy chain

核心锻炼滚轮 core exercise roller