MCM works closely with the Vietnamese government to obtain first-hand information of Vietnamese certification. Major changes, Solar Battery Un38.3 , Un38.3 Test Items , Battery Singapore Certificate ,En 62133 Specification . MCM Provide one-stop service including testing, certification and local representative to make clients worriless. The product will supply to all over the world, such as Europe, America, Australia,Ottawa, Swaziland,French, Palestine.MCM gathers wisdom, integrates many cutting-edge technical experts at home and abroad, and solves problems online.