另一种以镁橄榄石粉为耐火材料，加少量纤维状矿物，改善透气性，用于高锰钢铸件。
The other for high Mn steel castings, consists mainly of forsterite powder with a few addition of fibre-like mineral both additions are used for improving permeability.
另一种以镁橄榄石粉为耐火材料，加少量纤维状矿物，改善透气性，用于高锰钢铸件。
The other for high Mn steel castings, consists mainly of forsterite powder with a few addition of fibre-like mineral both additions are used for improving permeability.
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