... ,square,outdoor,etc 6years' exporter 15years' manufacturer all kinds of cable ladders being stamped out from aluminium alloy or Q235 with ... ,800,(mm),etc L:1500,2000,2500(mm),etc. Light type: W: 400,(mm),etc L:2250,3000(mm),etc. Square ... , China mobile,China unicom,China telecom, etc.Sales:1billionRMB/year cable ladder