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发表于 2021-1-12 10:35
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来自: 中国江苏扬州
BV PtC CH1,SEC10 9.16 12) for areas of the head susceptible to erosion (e.g.those parts directly subjected to ballast water impact when the tank is beingpressed up, for example the inner chamber area above theair pipe, plus an over-lap of 10° or more either side), an additional harder coating is to be applied. This is to be an aluminium bearing epoxy, or other equivalent, coating, applied over the zinc. 这个请问如何理解,高手指教! |
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