型砂在型模周围成形，并根据需要安放闸道、浇道、冒口、排放口和浇注杯等。

Sand is formed about the patterns, and gates, runners, risers, vents and pouring cups are added as needed.

youdao

型砂在型模周围成形，并根据需要安放闸道、浇道、冒口、排放口和浇注杯等。

Sand is formed about the patterns, and gates, runners, risers, vents and pouring cups are added as needed.

youdao