G80 FORGED REGULAR SWIVELS: 1.Surface treatment:Spray red plastic; 2.Material:carbon ... formed by Beijing, Tianjin and Shanghai. Main product include:Lifting Hook series,Ring series,Shackle series,Connecting link series,Lifting chain ... ,Lifting pulley series and Chain block series etc--- G80 FORGED REGULAR SWIVELSEach part of the paramete: