The new type of all-welded plate & shell heat exchanger combining the advantages of plate, shell & pipe heat exchanger has been applied in industry and shipbuilding.

近年来，集板式、壳管式换热器优点于一体的新一代板壳式换热器在工业、船舶行业有了一定程度的应用。

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Familiar with or a basic understanding of steel, plate, pipe material price.

熟悉或基本了解钢材，板材，管材等材料的价格。

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Renewal of qualification may be made for any process by welding a single test coupon of either plate or pipe, and by testing of that coupon as required by QW-301 and QW-302.

如需重新获得资质，则该焊工需要遵照QW - 301和QW - 302的要求，在一个板材附件试片，或一个管材附件试片上，进行焊接试验。

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Hawkins paces out just one square foot of foreshore and picks up Victorian plate, modern glass, oyster shell, medieval roof tile, granite ballast from merchant ships and clay pipe stems.

BBC: London from the tide line