... 3: High mechanical strength, safe and reliable operation; 4: Anti-aging superior performance suitable for high altitude areas ... 70, etc. ); 2: Composite strut (eg: FZSW-10/4.0, etc. ); 3: Composite cross-tam-style (such as: ... FSW-10/2.5, etc. ); 4: Composite needle (such as: FPQ-10/4T20, etc. ... FXBW4-66/100 FXBW4-110/100 FPQ2-24 / 4 FPQ2-36 / 5Composite Insulators for Electric Railway Model ...