BTTC (Beijing Tiandijingyi Technology Co., Ltd) is a new high-tech enterprise registered in ZhongGuanCun Science and Technology Park. Our company has the one of the most advanced technological and managerial service teams coming from the professional domain. The TIANHAN series of products, based on components of internationally best-known brand, has successfully reached to internationally preeminent levels and has obtained the proprietary intellectual property rights. Our company has an excellent research and development team which marvelously applies the leading technologies to designing, developing and producing Ultra-low temperature product series, such as -60â?? ã??-86â?? ã?? -120â?? freezers, -80â?? Ultra-freeze dryer, and -135â?? Water Vapor Cryopumpã??-100â?? â?? -160â?? Chillers Series and non-standard products according to our customersâ?? demands. Our products are specifically designed for and welcomed by Scientific Research Institutes, Medical and Health, Aviation & Military, Biological Pharmacy, College Research Institutes of Electronics, Metal Process, Electronic Industry, Chemical Industry, Offshore Fishing Industry and so on. Our company has acquired certifications of Quality Management System Standard ISO9001, and our products have been welcomed all over the world, such as UK, Russia, Singapore, Malaysia, Turkey and Korea. Our products and services and high performance-price ratio have earned us approval and praise both from the domestic and international markets. We can also design and develop non-standard Ultra-low temperature equipments according to our clientsâ?? demands.