... are professional in industrial steel rail,Website:http://www.inter-railway.com, mainly deal with heavy rail, light ... Q: Inquiry necessary?A: 1.1 drawing with full sizes,;1.2 Material and degree;1. ... many ways of surface treatment?A: Plain (oiled); Paint with any Color; Oxide Black; Wax; Bitumenizing; DHG; ... , we are. 1. Which kind of steel rail should I choose? If you use it in mine railway, ...