The block is cast in one piece from gray iron or iron alloyed with other metals, such as nickel or chromium. Some blocks are cast from aluminum.
缸体是由灰铸铁或含有镍或铬的合金铸铁整体铸造而成的。有的缸体由铝浇铸而成。
It is permissible to chromium plate or electroless nickel plate the surfaces of the block.
允许对校准块表面镀铬或无电镀镍。
It is permissible to chromium plate or electroless nickel plate the surfaces of the block.
允许对校准块表面镀铬或无电镀镍。
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