Jeffer Machinery Co., Ltd.
Taiwan, China. Manufacturer of knife grinders for carbide cutters, carbide saw, router bits, straight knives, profile, round rod knife.

Kentai Machinery Co., Ltd
Taiwan, China. Manufacturers of saw blade grinding tools machinery.

Perfect Machine Co., Ltd.
Taiwan, China. Manufacturer of surface grinders and grinding machines.

Shin Neng Metal Surface Chemical Co., Ltd.
Taiwan, China. Burnishing machines, grinding tools, compounds for metal finishing, quality plastic rumbling media and steel balls. Electroplating machines used for electric components. Dehydraters and dryers, auto-selector vibrating grinders, continuous waste water recyclers, compounds for metal finishing, abrasive stone.