Fuyue Chemical Co., Ltd: Find professional active pharmaceutical ingredient, pharmaceutical intermediate, fine chemicals, sugammadex sodium, triphenyl methane manufacturers and suppliers in China
... Read more
As one of the leading powder machine manufacturers and suppliers in China, we warmly welcome you to wholesale quality powder machine for sale at competitive price from our factory.
... Read more
Zhejiang Dingyao Import and Export Trade Co., Ltd: We're professional sex dolls, hot sale sex vibrator, sex toy, koro ball, bullet vibrator manufacturers and suppliers in China. If you're going to buy
... Read more
We're professional electric furnace transformer manufacturers and suppliers in China, specialized in providing the best custom service. We warmly welcome you to wholesale discount electric furnace
... Read more
As one of the most professional machining center ball screw manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy machining center ball
... Read more
Emerald has priority over beryl as a mineral name. Emerald was known in antiquity and was prized as a gem. In the 1790s, Louis Nicolas Vauquelin, the discoverer of chromium, demonstrated that emerald and beryl were essentially the same chemical compound and that emeralds, sensu strictu, contained chromium.