Ball Eye (QP) 1. Cast iron, others are steel. Overall are hot galvanized 2. Used in long-distance power transformer project Ball Eye (QP)1. Cast iron, others are steel. Overall are hot galvanized 2. Used in long-distance power transformer project Item No.Suitable InsulatorDimensions(mm)Ultimate Strength(kn)dφBDHQ-7XP-7 X-4.5171717175069QP-7X-4.5171717175069QP-10X-101717171750100QP-16X- ...