Chengdu Oriental Instrument Co., Ltd. was established in 1993, obtained helium detection invention patent certificate in 1995, and in 2003 was a joint venture with the world’s largest vacuum enterprise Co., Ltd. ULVAC, and is currently the world’s largest manufacturer of helium detection equipment. Main business: online helium leak detection device, vacuum drying and degreasing device, nuclear industry and military industry vacuum and helium inspection customized equipment, mainly used in air conditionier, refrigerator, automobile, nuclear industry and other industries, some products have been exported to the United States, Britain, Germany, Mexico, Thailand, South Korea, Japan, India, Brazil, Russia, Malaysia and other countries.