Detailed Product Description Lady or Gentlemen:Shenzhen Coold Science & Technology Co., Ltd. works in the areas of High Technology and Professional CAD ... any hesitation . Best RegardsWillianms HuSHENGZE COOLD SCIENCE & TECHNOLOGY CO., LTD. ADD: The maozhoushan industrial park, Houting, Shajin town, Baoan region, Shenzhen city, China