1) seamless steel yeeb nkab geometry kuaj Seamless steel yeeb nkab txoj kab uas hla, phab ntsa thickness thiab curvature, ntev ntawm lub rooj tshuaj ntsuam nrog ib tug caliper, micrometer, thiab khoov rau ko taw, qhov ntev ntawm daim kab xev yuav tsum tau xyuas. Sab nraud txoj kab uas hla, phab ntsa thickness thiab ntev kuj tseem siv tsis siv neeg dimension ntsuas ...
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