Structure 1, insulating pad composition: Insulation rubber pad with plastic type insulation materials mainly produced with NR, SBR and IIR excellent insulation properties of the non-polar rubber. 2, insulation pads characteristics: insulation mat under the surface should be no harmful irregularities. Harmful irregularities refers to one of the following characteristics, namely, to destroy the uniformity of the smooth contour of the damaged surface defects, such as holes, cracks, local uplift, incision, mixed with conductive particles, creases, the gap, the bump, ripple and casting marks . Harmless irregular refers to the production process of the formation of surface irregularities. Good quality insulation pads no smell, no bubbles, no dents, neat and clean smooth surface insulated rubber mat thickness measurement: Throughout the insulation mat should be randomly selected more than five different points for thickness measurement and inspection. It can be used thousands of darling or the same precision instrument to measure. Micrometer accuracy should be less than 0.02mm, measured drill diameter 6mm, diameter plane presser foot (3.17 ± 0.25) mm, presser foot should be able to exert pressure (0.83 ± 0.03) N The insulating pad should be flat to place order micrometer measurements between so smooth. 3 insulation pads upper and lower surfaces should be no harmful irregularities. Insulation pads harmful irregularities is one of the following characteristics, namely, to destroy the uniformity of the smooth contour of the damaged surface defects, such as holes, cracks, local uplift, cut, mixed with conductive particles, creases, bump, ripple and casting marks and so on. Contact QQ: 2082124957 Contact: Zhao Li Jin Tel: 0311-80934497