The engine crankcase and block are usually cast into onepiece and therefore can be seem as the largest and most intricate piece of metal in automobile.
发动机曲轴箱和气缸体通常铸造成为一体，因此算作汽车中最大且最复杂的金属结构。
2
Rugged one-piece body including flanges. Cast in stainless steel to eliminate corrosion problems that are found with cast iron, or steel valves lined with stainless steel.
坚固的一体式阀体包括法兰。不锈钢铸件避免了不锈钢衬里的铸铁或钢阀门常见的腐蚀问题。
3
The block is cast in onepiece from gray iron or iron alloyed with other metals, such as nickel or chromium. Some blocks are cast from aluminum.