商周时代的铜雕艺术，极大部分是用陶范法铸成的，后代未知此法，作伪者只能用蜡模(失蜡)的方法铸造。由于当时作伪的人，只讲究器手的外形，还不知道古人铸造 的原理的方法因此，特别青铜器是否用陶范法铸造，对于确定青铜器的真 伪，是一个重要的方法。这里有一个必要的条件，就是对商周青铜器铸造方法的全过程，要有确切的了解。后代伪器的铸造方法和古代用陶范法铸造完全不同，因而伪器所呈现的铸造现象也不相同。观察是否用陶范法铸造青铜器的主要方法， 是的看青铜器是否有块范对合的痕迹，即是事有“线”，了就是看应该合范处是否留有对合的范痕。 The bronze art of the shang zhou era was made from the tao fan method, and the progeny were unknown, and the forgers could only be cast in wax models. Due to the behavior of people, only pay attention to the shape of the hand, also don't know what the ancients casting principle of the method, therefore, special bronze casting with pottery mould method, to determine the true bogus of bronze ware, is an important method. There is a necessary condition for the process of casting the bronze ware in the shang zhou dynasty. The casting method of the progeny is completely different from that of ancient pottery, so the casting phenomenon of the puppet is different. See if the main method of using pottery mould casting bronze, yes see traces of bronze ware if there is a piece of fan involution, is a "line", the is whether should be closed van in the involution of the fan.