We are an ISO9001:2008 certified Chinese transformer bushing supplier, with voltage class between 1kv-550kv. We are located in Shenyang, Liaoning Province, Northeast China. Our factory has been focused on Power Sector since the establishment in 1964. We supply bushings mainly for some Chinese transformer manufacturers like TBEA, TWBB Transformer Group, Xi&＃039;an Transformer, etc. The electrical and mechanical performances meet the requirements of GB/T4109-2008 and IEC 60137 Ed.6.0. Main characteristics of our OIP bushings(HS Code:85462010): ***** the small diameter and light weight of the bushings, it is possible to reduce the structre dimensions and weight of the transformers. ***** collection box is integrative structure with less sealing parts and ensure the reliable seal. ***** improvement for the testing tap ensure reasonable structure and reliable performance. Operation Conditions Ambient temperature is in the range of minus 45 degrees to minus 40 degrees centigrate. Maxium mounting angle off of the vertical is 30 degrees. Altitude should not be more than 1500m. Please negotiate with the manufacture if 1500m above height is needed. Part of Description of Trade Terms: Lead time(for standard products): 15-45 days. Mim. purchasing number: 72.5KV or below: 3 pieces 72.5KV and above:1 piece FOB, CFR and CIF are all acceptable. For further Technical Data, Type Test Report, ISO9001 Certificate, or even a quotation, just simply contact us.