According to the requirements by binding mortar paste on the wall, and use plastic expand screw to anchorage.
用粘结砂浆按要求粘贴上墙，并使用塑料膨胀螺钉加以锚固。
With a purpose of overcoming the defects formed in foam plastic mould in the investment moulding cast, a kind of mending paste is manufactured by ourselves.
为克服消失模铸造中所用泡沫塑料模产生的缺陷，自制了一种修补膏。
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