Branch Snyder Department of International Ltd. Shenzhen-Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 layer plywood professional supplier of electroless copper circuit boards for customers provide high-precision, high-quality multi-layer circuit boards Shenzhen electroless copper circuit board, quality assurance, reasonable prices. Since the swelling caused by bulky, and because of cohesive strength, so make eclipse generate sex-selective bite, and a so-called micro-rough. But as a result of excessive corrosion bite, will once again smooth. Bite erosion capacity will vary change with different substrates. The electrodes must be careful maintenance electroless copper circuit board cost, the electrode is difficult to fix absolute efficiency standards, and it is difficult to confirm whether sufficient to meet actual needs. It is usually the experience gained and suppliers to provide information on the needs of the reference electrode Branch Snyder Department of International Ltd. Shenzhen-Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 layer multilayer professional supplier, to provide customers with high-precision, high-quality circuit board in Shenzhen, quality assurance stability electroless copper circuit board, at reasonable prices. Section and strong copper ring (MLB) of non-metallic hole, to be treated non-metallic epoxy resin, glass filaments of the second portion. Section and copper (plywood) of surface of the ring-bodied. Copper substrate surface with positive charge, the non-metallized substrate surface with a uniform weak negative charge, plywood after Desmear treated more negatively charged. When activated palladium colloid micelles are negatively charged, so negative negative repulsion, palladium colloid adsorption can not be effective, so to change the surface of the plate, especially the non-metallized surface electrical properties electroless copper circuit board, Immersion Stability copper circuit board, Newell record (certified merchants) by the Department of Shenzhen-Electronic Technology Limited. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) is specialized in "pcb circuit board" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Huang Shengxing.