QIDONG Best Machine Co., Ltd located in the Yangtse River estuary, adjacent to Shanghai, is a professional Non-governmentally operated enterprise who specializes in developing, manufacturing and trading the machinery accessory products(Sight Glass). From our company established to now, we have built the cooperation and partner relationship with over 100 domestic large-medium enterprises from more than twenty provinces, municipality and autonomous regions. And we export sight glass series products to many foreign Countries and regions, such as USA, Canada, UK, Spain, Australia, Philippine etc...

Our main products include four series sintered sight glasses and liquidometers, which are well-assorted with different series of compressors, air conditions, air compressors and electric power equipment, they are JSL series screw sight glass, JSF series flange sight glass, JYG series tubing Liquidometer, JYB series flat Liquidometer etc...Our products are provided with simple structure, novel appearance, high airproof, well poressure, good anti-cold concussion, marked clearly in the indication of liquid location etc characters, and favor of the spacious domestic and overseas air compressor producer deeply.

Our company relies on the scientific thinking of management and outstanding specialized personnel, hold on the idea "Create benefit for clients, Create chance for personnels, Create worth for society", insist on clients as centre, service as root, Keep improving and strive for perfection, provide the best and effective service for all our customers, and has won the good reputation.

We are expecting sincerely internal and external friends to contact with us, negotiate, progress courageously hand in hand, and create brillian future together!