The riding position of signal wire was not always in the vertex of the impression from the conclusions of production, but in the position in which aluminous liquid tilted at last.
The riding position of signal wire was not always in the vertex of the impression from the conclusions of production, but in the position in which aluminous liquid tilted at last.
由生产实践总结出信号线的安放位置不一定在型腔最高点，而应在金属液最后充填的位置。