Zhenlihua produces four kinds of double circular knitting machines. They are Open Width series, Mini series, Rib series and Rib Interrock series. The high production Interlock series maximizes the production of double knitted fabrics, while the Rib series covers the high production rib and the more versatile version and the fabric structures, Allowing 4 tracks on cylinder, 2 tracks on dial, enables knitters to produce literally any double knit fabric structures. The Rib Interrock series must be equipped with the individual cylinder stitch cambox to enable knitters to produce multiple special fabric structures through delay cam timing. Made from precision casting, The cylinder stitch cambox accommodates the four adjustable cam positions for exact needle positioning.