Genuine promotion a boat over five crystal head 50U gold-plated national mail latest promotions

Genuine promotion of a boat over five crystal head 50U national mail latest promotions transparency gilded crystal head, good product of course, is good material, so most of them are good quality crystal head crystal clear, and substandard is muddy texture , and sometimes there are impurities. While individual inferior product material is also very transparent, but the work is rough, and it is easy to distinguish. And this crystal head transparency very bright, very delicate work without any impurities. Plasticity, in addition to transparency and the appearance of these images through the identification, materials, texture and plasticity is a way to distinguish. Fragmentation and so poor crystal plasticity occurs when the head is generally substandard with pliers to suppress. And this crystal head plasticity is very strong, made of high quality materials, never cracks and other defects. The thickness of the contact pin gold plated contact pin .... beautiful gilded color Huang Liang, including gold-plated volume is very high. Shrapnel flexibility .... This crystal head shrapnel struck with a finger will hear clank sound, will slide to 90 degrees forward shrapnel, shrapnel and will not break, and restitution and elasticity will not change! Will do crystal head into the network device or network card in time to hear the crisp "click" sound.