2022-5-30 · Laizhou Weiyi Experimental Instrument Manufacturing Co. Ltd. Is engaged in domestic metallographic sample preparation equipment, sample preparation supplies R &D, production and sales of leading enterprises. The company was founded in 2001, covering an area of 55 acres. We have 110 staff at present, among which there are 32 engineering and ...Laizhou Rijin Machinery Co., Ltd.Laizhou Nissin Manufacturing Co., Ltd., a wholly-owned subsidiary of Nissin Manufacturing Co., Ltd. (Japan), was registered in Laizhou, Shandong, China in 1995. The company officially started production in 1997. It now has 490 employees and covers an area of 44,850 square meters.