1. Qhov sib txawv tseem ceeb Kub-dip galvanizing yog yaj cov zinc rau hauv cov kua hauv lub xeev, thiab tom qab ntawd raus lub substrate kom tau plated, yog li cov zinc ua cov txheej interpenetrating nrog cov substrate kom tau plated, yog li qhov sib txuas yog nruj heev, thiab tsis muaj qhov tsis zoo lossis tsis xws luag nyob nruab nrab ntawm ...
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