想买一个金属探测器Product Dimensions: 21.5 x 14.6 x 5.7 inches ; 5.4 poundsShipping Weight: 5.6 pounds (View shipping rates and policies)Origin: USAASIN: B007G5UZSOItem model number: Ace 350用什么转运比较好,如果收关税的话, 最多能收多少关税啊,这东西2000RMB大概