... :http://www.inter-railway.com, mainly deal with heavy rail, light rail, crane rail of Chinese Standard and related accessories, in ... be showing in quotation.6.Q: Sample matters?A:We can supply sample, accept customization. 7.Q: Certification Matters?A:We ... choose? If you use it in mine railway, you can choose light rail size:9kg/m,12kg/m,22kg/m,30kg/m