Cov yam ntxwv tseem ceeb ntawm cov yeeb nkab ci ntsa iab: Cov yeeb nkab nrog phab ntsa precision, ua tiav zoo, tsis muaj cua sov kho steel oxide txheej, sab hauv phab ntsa ntawm cov hlau huv huv kom tiv taus qhov kub siab, txias deformation, flaring, flattening tsis muaj kab nrib pleb, tuaj yeem ua rau muaj kev kub ntxhov. ntau yam complex deformation thiab mechanical ...
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