This components used for 12kv/24kv SF6 ring main uint bushing and bus connector extend
12kv/24kv 630A
Low than 10pc/12kv/24kv

IEC C1 bushing

12kv 630A bushing 
24kv 630A  bushing 
36kv 630A bushing 
42kv 1250A bushing

24kv 250A  bushing

and low voltage 
800A bushing
1000A bushing
1250A bushing
1600A bushing
2150A bushing