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Gen nenpòt kesyon?

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Feb 01, 2021

Ki jan yo fè distenksyon ant Nwa Steel Pipe ak cho kwazman galvanize Steel Pipe?

① Koulè tiyo a. Tiyo an asye nwa se pi nwa, pandan y ap tiyo a galvanised se ajan ak gri;
② Tiyo asye galvanize yo itilize poudlotranspò, pandan y ap tiyo asye nwa yo itilize pougastransportasyon.

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