... than 3%, unqualified products replaced immediately;4.We can offer a free sample for yourt testing. (The freight belongs to the ... Co.,Ltd ,one of the largest manufacturers in Beijing,Special in laser toner cartridge/ink cartridge,and the toner cartridge accessory. Our company is the High-Tech ... sales into an organic whole.2.Napo was estiblishes in 2002,with a staff of 100 workers,an area of 3,000 ...