1.Allaround guide rail follows ISO7465/2007. 2.Factory has passed ISO9001 ... ,North America,Europe etc. Dimensions of T70/A machined guide rail: DimensionCOD.ISOb1h1kprs±1.5±0.75±0.05 ... T45/A4545551T50/A5050551We can supply all kinds of elevator guide rails:T45/A:45*45*5mm.T50/A:50 ... :78*60*16.4mm packing T70/A elevator guide rail, cold drawn guide rail, linear guides, elevator parts, linear guideway