阻火圈 meaning in English

fire stops collar

Fire stopping collar of pvc - u pipe for building drainage
硬聚氯乙烯建筑排水管道阻火圈
Acm have said that they happy for the fire collars to be nested in order to reduce the number of boxes but must be on pallets
Acm公司说他们对为了减少箱子的数量而对阻火圈进行嵌套包装很满意,但是必须放在托盘上
Acm company said our packing for the fire collars are more appreciated which in order to save room and reduce cartons . but these cartons must put on pallets
Acm公司说他们对为了减少箱子的数量而对阻火圈进行嵌套包装很满意,但是必须放在托盘上