When the metal coating is punctured or scratched, the capsules in the damaged area burst and ooze restorative liquids, in the form of compounds called trivalent chromates.
当金属的覆盖层受到扎刺或划损时，受损区域的胶囊将会破裂并渗出具有恢复性的液体- - -三价铬钝化化合物。
When the metal coating is punctured or scratched, the capsules in the damaged area burst and ooze restorative liquids, in the form of compounds called trivalent chromates.
当金属的覆盖层受到扎刺或划损时，受损区域的胶囊将会破裂并渗出具有恢复性的液体- - -三价铬钝化化合物。
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