... : stepper,spindle rotating speed:24000rpm,The above type to dub in the water. [superstar]automotive foam molds Features: 1. Ball screw for ... steady and durable.2. This mold is one GDF automotive foam mold, also a customized models. We can design according to ... : It engraves all kinds of large nonmetallic molds, especially automotive foam molds, wooden ships molds, aviation and train wood molds.Secondly ...