Shell core and cold box coremaking are the main technique at present.
目前制芯工艺主要采用壳芯和冷芯盒制芯技术。
They were getting cold in the cardboard box.
由于小熊仔窝在纸盒子里，被发现时已经有些受凉。
The purpose: the cold storage, polyurethane or refrigerator fresh box.
聚氨酯的用途：冷库、冷藏车或保鲜箱。
The purpose: the cold storage, polyurethane or refrigerator fresh box.
聚氨酯的用途：冷库、冷藏车或保鲜箱。
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