Selection of hot or cold forming of materials may be made by Vendor, but heat treatment after forming shall conform to the requirements of applicable material specifications.
材料的热成型或冷成型的选择由卖方进行，但成型后热处理应符合相关材料规范的要求。
Seals can be polymer materials, asbestos or rubber seal material selection depends on the valve components of the transmission medium, operating temperature, working pressure and flow rate.
密封件可以是高分子材料、石棉或橡胶，密封件材料的选择取决于阀门所输送的介质成分、工作温度、工作压力和流速。
NOTE 2 Sampling procedures should describe the selection, sampling plan, withdrawal and preparation of a sample or samples from a substance, material or product to yield the required information.
抽样程序宜对取自某个物质、材料或产品的一个或多个样品的选择、抽样计划、提取和制备进行描述，以提供所需的信息。
Pipeline series ball valve is not only wide selection of parts and materials are used in nickel-plated or 316, seal with a special polymer material.
长输管线系列球阀不仅选材广泛且内件材料均采用表面镀镍或是316材质、密封圈采用特制的聚合物材料。
By designing and developing the mainframe and aluminum bar clamp, the clamping leaf spring can be adjusted to suit the different selection of the material or the transformation of angle.
通过设计开发主架及夹持条铝型材，夹持片簧可以不同选材或角度调整以适应实际夹持面料的变化；
By designing and developing the mainframe and aluminum bar clamp, the clamping leaf spring can be adjusted to suit the different selection of the material or the transformation of angle.
通过设计开发主架及夹持条铝型材，夹持片簧可以不同选材或角度调整以适应实际夹持面料的变化；
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