Standard: IEC, ANSI, BS, AS, DIN, CAN and GB and etc.
Color: light gray, brown, white, sky blue and etc.
Non-standard products

insulator consists of one or more ceramic or glass parts permanently secured in a metal base and intended to be mounted rigidly on a supporting structure by means of a stud or bolts attached to the base. Unless otherwise stated, this term includes the stud or bolts.In operation, it is generally mounted vertically and horizontally.