Features: - premium raw materials of epoxy resin, silicone powder and hardener - high insulation resistance, intensity and stability. - the different models vary based on current value for user's selection - apg technology applied in production Applicable work environment: 1-indoor installation 2- altitude: =1000m. 3- ambient temperature: 5°c~±40°c 4- relative humidity shall not be more than 85% at 20°c ambient temperature. No gas, vapor or dust, which may severely effect the insulation of contact box; no explosive or corrosive substance Packing: Step 1- wrapped with plastic film Step 2- pack in cartons Step 3- several cartons are bounded with fixing belts externally in a wooden/plastic pallet Delivery time: within 1 weeks, depends on order quantities. Additional: 1- oem is available 2- premium quality & timely delivery 3- competative price 4- various designs and models