Various dimension guide rails are available here 

T70/B,T75/B,T78/B,T82/B,T89/B,T90/B, TK3A,TK5A, 8K,13K,18K,24K etc 

Comply with ISO7465 standard, suitable for lift with speed 0-1.6m/s

Solid guide rail for lift cabin and hollow guide rail for counterweight guide rail usually. 

If any other spec. guide rail required, just feel free to contact me, Kathy at wechat/whatsapp: +86-13889364309