Salt core Al alloy piston and the new way of shaping cooling channel with watersolublesalt core are introduced.
介绍盐芯铝活塞概要和一种新型水溶性盐芯成形内冷却油腔的方法。
2
Steel surface should be no visible grease and dirt, and there is no attachment not firm scale, rust, paint and other impurities (watersolublesalt and welding residue).