Shipbuilding . head of sounding pipes with self - acting valve . details.

造船工业。带自动阀的测深量头。零件。

Shipbuilding . head of sounding pipes with self - acting valve . details of body.

造船工业。带自动阀的测深管测头。阀体详图。

Some of the oil and chemical industries are built almost entirely around self-acting controls.

石油化学工业的一些生产设施，已经用机器自动控制。

Some of the oil and chemical industries are built almost entirely around self - acting controls.

石油化学工业的一些生产设施,已经用机器自动控制.

Metals. pay electricity sales, self-acting and technical types of commodities that the import and export business.

同时还具备装饰装修材料、五金交电、家用电器销售等业务。