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  • 铜规格
    • May , 05 2020
    铜规格

    Specification of Brass Symbol Working temp Chemical composition (%) Tensile strength(kg/mm2) Elongati rate(%) Hardnes (Brinell) Cu Zn Pb Sn Al Fe YBsC1 1120 83.0~88.0 11.0~17.0 0.5~ Sn + Al + Fe 1.0 15~ 25~ 45~55 YBsC2 1000 65.0~70.0 24.0~34.0 0.5~3.0 ~1.0 ~0.5 ~0.8 20~ 20~ 44~60 YBsC3 1000 58.0~64.0 30.0~41.0 0.5~3.0 ~1.0 ~0.5 ~0.8 55~ 15~ 120~ Specification of High Tensile Strength Brass Symbol ...

  • 知识点: 出水口以及船用拷克/球阀
    • Apr , 29 2020
    知识点: 出水口以及船用拷克/球阀

    Never forget: the lowly seacock is all that stands between the sea and your boat Clearly, with any device that penetrates the hull of a yacht, the choice of materials, design and method of installation is paramount to the safety and integrity of the vessel. Plenty of boats have been lost due to corroded through-hulls and seacocks, either through electrolytic breakdown of the material itself or by ...

  • 船维护建议: 小小船用海底阀导致的沉船事故
    • Apr , 26 2020
    船维护建议: 小小船用海底阀导致的沉船事故

    船维护小贴士:不起眼的球阀导致的沉船事故 The Surveyor offers expert advice about seacock maintenance, avoiding sunken boats and insurance cover The humble seacock, stop cock, gate valve or ball valve is one of the most important items on the vessel and it is the last line of defence for keeping large amounts of sea water from flooding your vessel. So why is it the lowest on many boat owner’s maintenance checks? More ...

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