自動扶梯鏈條：用於自動扶梯、zidongrenxingtongdao。youyuzidongfutigongzuoshijianchang，anquanxingyaoqiugao，yunxingpingwen。yinciyaoqiucitijilianbixudadaoguidingdezuixiaojixianlashenzaihe

，lianggenpeiduiliantiaodezongchangpiancha
、梯級距偏差。