Hager Kunststoff- und Metall GmbH

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

Main products: bergamot lactone, hyperoside, stilbene glycoside, curcumin, dideoxycurcumin, psoralen, vitexin, coumarin, glycyrrhizin, Ophiopogon japonicus saponin D, steviol glycoside, mulberry pigment, glycyrrhizin, salvianolic acid B, etc.