[国外标准] DIN 2464 Parallel pin with internal thread, hardened NB The nominal length L is inclusive the rounde
[国外标准] AS 4899-2007 Pin insulators—Porcelain and glass for overhead power lines—Voltages greater than 1000
[国外标准] JIS B1008-1988 Split Pin Holes and Wire Holes for Bolts, Screws and Studs
[国外标准] JIS C3821-1992 6600V Pin type insulators