Desc:ANSI Standard Porcelain Disc Suspension Insulator:ANSI standard suspension insulator is very popular, for example:ANSI 52-1,52-2, 52-3, 52-4, 52-5etc....
Desc:ANSI Standard Porcelain Disc Suspension Insulator:ANSI standard suspension insulator is very popular, for example:ANSI 52-1,52-2, 52-3, 52-4, 52-5etc....
Desc:Silica fume, also known asmicrosilica, (CAS number 69012-64-2, EINECS number 273-761-1) is anamorphous(non-crystalline) polymorph ofsilicon dioxide,si...