Application 50kg/m steel rail, sleeper 50kg/m and 60kg/m steel rail, sleeper Spring clip-III fastening, subway Certificate ISO9001:2008 Hardness HRC41-46 HRC42-47 HRC44-48 HRC44-48 Surface Finish plain (oiled), zink plated, dacromet, oxide black or according to customers' requirement woven bags and wooden pallet, 25kg/ bag, 36bags/pallet, 26pallets/container