High strength Round Link Chain Application: Supporting chain, block chain for hoist, hanging beamMaterial: High quality alloy steelSurface: Polished, black, dipping lacquer, spraying painted, ... Dacroment coated.Manufacture standard: ISO, DIN, BS, JIS, GB.Strength grade: Grade 100, Grade 80, Grade 70, Grade 63, Grade ... .27.711.3270450DL2006025/12.520×6025708.612.5300500 High strength Round Link Chain