1, Full range types 2, fine welding tube 3, low vibration and noise 4, special design and ... roller range: Carrying roller, return roller, impact roller, vertical roller, self-alignment roller, side roller, through roller, roller group etc. 2 ... is lithium soap type grease with rust inhibitors (g) Welding: mixed gas shielded arc welding end (h) Our roller saves on repair and ...