Ersel Heavy Machinery Inc.

Welch has provided quality vacuum pumps for laboratory, industrial and educational applications for over a century. Today, Welch is a leading manufacturer of vacuum pump products for chemical and biological laboratories, high vacuum manufacturing, an

Since Reflect Scientifics organization in 1993, our focus has been on providing value added consumable products and technology-based equipment for the life science marketplace. Reflect's product range has grown to include ultra low temperature freeze

Jinan Winner Particle Instrument Stock Co., Ltd. have been specialized in laser particle size analyzer since 1985, Our General Manger, Professor Ren created 1st of laser paraticle size analyzer in Jinan University, We are specialized in Laser Diffrac