NJK has a very complete production line. Before the production, there are automatic phosphate machine for cleaning metal cases, rubber blending machines, and CNC for producing tooling. For production process, there are several rubber compression and injection machines and plastic injection machines. For post-production, the automatic trimming machines, spring coiling machines, spring installation machines and automatic inspection machines make NJK become more and more automation. Due to the automation, NJK is able to deliver stable capacity and best quality of products.