发明授权
US3104442A Construction of the cooling zone of tunnel kilns, and especially though not essentially to such kilns for firing ceramic goods 失效
隧道窑的冷却区的建造,特别是基本上不是用于烧制陶瓷制品的这种窑炉

Construction of the cooling zone of tunnel kilns, and especially though not essentially to such kilns for firing ceramic goods
信息查询
0/0