... : 1, material: steel; 2, Hot dip galvanized, 3, Rust resistance treatment Specifications: Steel conveyor roller shelf bracket: 1, material: steel; 2, Hot ... :1, It is used to support the roller.2,Hot dip galvanized, rust resistance.3, Roller frame is an important component of a machine ... .We provide the bracket separatly and also the set include roller and bracket .