A 148 90-60 precision big casting parts ... A148 90-60 3.Machined by machining center A 148 90-60 Precision Big Casting Parts Detail Information ... and polishing machine, etc.3). The casting is produced completely according to your drawing in cluding tolerance, dimension, smoothness, ... treatment, material. We also provide applicable advice according to the usage ot the products.4). Facing Method :Raw ...