Clay mineral is widely applied in foundry now. This paper gives some testing methods for clay mineral through analyzing the characteristics of the structure of two clay minerals.
A mixture of moist clay and sand, together with straw, used especially in making bricks and foundry molds.
粘砂土湿粘土和砂子的混合物，带有稻草，专用作制砖和铸模。
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The company, owning expert stuff in manufacturing and selling sand preparation equipments for foundry, is well known as specialization in the complete sets of resin sand and clay sand equipments.