... this mould is suitable for LSR inject product, surge arrester, hollow core insulator, bushings etc. from 110kv to 1000kv. 1.Mold cavity ... cavity.2.Products material: P20, S50, S1363.Mold case material: S50,etc4.Mold core material: P20, etc5.Value-added service: ... polishing, nitrogen treatment, black coating, etc6.Mold package: iron case7.Delivery time: 60-90days8.Design and manufacture ...