... : Porcelain This Line post insulator is used for all circuit and power station standard: IEC, ANSI, BS, DIN AND GB etc A line post insulator consists ... bolts.In operation, it is generally mounted vertically and horizontally. Standard: IEC, ANSI, BS, AS, DIN, CAN and ... gray, brown, white, sky blue and etc. Non-standard products: manufactured in accordance wih the customer's drawing line post insulator