• IEC 61466, IEC 61109, IEC 61952, ANSI C29.13
• ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA
• Seismic design, ETGI-1.020, IEEE Std 693, NCh2369
• Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1
• High altitude correction per IEC & IEEE, ~ 5000m
• Special corrosion-resistant high strength fiberglass
• Unique vacuumizing method-Bubble Free vulcanization
• High hydrophobicity and tracking resistance of the silicone rubber
• Line post insulator, Line suspension insulator, Railway polymer insulator