plumbing drain 中文意思是什麼
plumbing drain
解釋
衛生排水-
Standard specification for mechanical couplings using thermoplastic elastomeric gaskets for joining drain, waste, and vent, sewer, sanitary, and storm plumbing systems for above and below ground use
地下和地上用的連接排水廢物通風污水衛生及暴雨管件設備的帶熱塑彈性墊圈的機械連接件的標準規范
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