China Insulator Iron Caps (clevis/socket caps/disc insulator cap) with Corrosion Resistant, with Ductile Iron (QT) Material, with Various Size From 40kn to 550kn, Find details about China Good Quality, Malleable Iron from Insulator Iron Caps (clevis/socket caps/disc insulator cap) with Corrosion Resistant, with Ductile Iron (QT) Material, with Various Size From 40kn to 550kn