Provide specifications washed screen, casting sand and sand used in construction.

提供各种规格水洗筛, 铸造型砂以及建筑用砂.

互联网

One method to make casting sand mold directly from the bozzetto ( mud - draft ) of the sculpture is introduced.

介绍一种在雕塑泥稿外直接制作铸造 砂型 的方法.

互联网