They had the same type of products. But they did not suggest using the material of 180 with a high cost and a weight of about 3kg. The factory suggested using the material of 303 with a weight of only about 1.5kg and a very cheap cost.
英语翻译他们有同类型的产品,但是他们不建议使用180的材质,价格很高,而且它的重量接近3kgs,工厂建议使用303的材质