If the strength calculation of piping components is to be made, the allowable stresses of the piping materials shall be determined fist.

要对管道元件进行强度计算，首先就要确定管道材料的许用应力。

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The company completely satisfies production manufacture and test check related requirements of pressure piping components and safety accessories.

公司完全能满足压力管道元件和安全附件的生产制造、试验检测的相关要求。

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Plastics piping systems for buried and above-ground drainage and sewerage under pressure - Unplasticized poly (vinyl chloride) (PVC-U) - Part 1: specifications for piping components and the system.

地下和地上排水和排污用塑料压力管道系统。未增塑聚氯乙烯(PVC - U)。第1部分：管道件和系统规范。

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Collegiate blazers with bold stripes or piping, perhaps the most flamboyant components of the "Ivy look, " were worn not with matching trousers but with crisp white flannels.

WSJ: Mastering the Mismatch