Prime bonded body flanges in the marked areas and .
为标记区域和中的粘结车身法兰涂底漆。
Adding more faces and flanges .
加入更多面和凸缘。
Building things in a traditional factory requires adding flanges and brackets so that objects can be handled , milled and moulded by machine tools , and to provide surfaces for the parts to be bolted or welded together .
