Castings and forgings and hydrogen brittleness sensitivity to the spare parts of the appropriate USES weak acid galvanizing.

铸锻件和对氢脆敏感的零件宜用弱酸性镀锌液。

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An experimental investigation was made on the effect of the microstructure on the low-temperature toughness of the conventional low alloy steel used for petroleum machinery castings and forgings.

试验研究了石油机械铸锻件常用低合金钢的显微组织结构对低温冲击韧性的影响。

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The strength and ductility of forgings are better than that of castings.

锻件的强度、塑性和韧性优于铸件。

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At present, aluminium accounts for 9% of a typical vehicle's content mostly in the form of castings and forgings for engine blocks, transmission cases, wheels and suspension parts.

ECONOMIST: Tech.view: Unbearable lightness? | The