We produce high quality insulation pressboard (or called transformer board, pre-compressed pressboard), which is mainly applied to produce oil-immersed transformer as insulation material. Specification: Item no: h4, h41 Thickness (mm): 1.0 1.5 2.0 2.5 3.0 4.0 5.0 6.0 7.0 8.0 Standard size (mm): 4400x2200 (customer size is available) Rated voltage: 110kv-1000kv Quality standard: iec 60641-2:2004 Package: pallet Usage: As insulation material, it is widely used in oil-immersed transformer, reactor, capacitor, mutual inductor, etc. Our unique advantages: 1. High purity raw material: Canada 100% unbleached sulfate wood pulp 2. Most advanced technology in china: * expert: we hired authoritative japanese expert of 36 years of insulation pressboard production experience. And also we engaged famous expert in china. * machine: hot-press machine, stainless steel production line, on-line metallics detector are most advanced in china. * water treatment: iec standard, electrical conductivity