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Metal waterproof layer connectivity to the welding, and anti-corrosion protection brushing lacquer.
金属防水层的连接处要焊接,并涂刷防锈保护漆。
youdao
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Metal waterproof layer connectivity to the welding, and anti-corrosion protection brushing lacquer.
金属防水层的连接处要焊接,并涂刷防锈保护漆。
youdao