Founded in 1974, Haimen Changlong Instrument Co., Ltd is the largest manufacturer producting "Jiangfan" ("original Sail Brand")microscope slides and cover glasses and laboratory Glassware and related accessories. It is located in the center of Haimen, along the Yanzi River, nearby Shanghai city. With the advanced equipment and strict management, Haimen Chenlong Instrument Co., Ltd can produce 5.0 million boxes of microscope slides and 3.0 million boxes of cover glasses ability, it is the earliest instrument company which get the certification of ISO 9001 and certification of CE, the products are widely used in medical, scientific research and lab institute and are well received in USA, Europe, Australia and Southern Asia. "Quality First, Customer satisfaction" is the tenet of our company.

Customer at home and abroad are sincerely welcome to our company to discuss business, OEM is welcome!