Hlau Yeeb Nkab Dimension 3 Cov Cim: Cov lus piav qhia tag nrho rau cov yeeb nkab steel qhov loj muaj xws li sab nraud (OD), phab ntsa tuab (WT), cov yeeb nkab ntev (nquag 20 ft 6 meter, lossis 40 ft 12 meters). Los ntawm cov cim no peb tuaj yeem suav cov yeeb nkab hnyav, cov yeeb nkab siab npaum li cas tuaj yeem dais, thiab ...
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