Electrical wire is sheathed in metalfire-retard tube, to prevent ignition caused by fire in battery test.
电线外套均套有金属防火管，有效阻止电池试验过程着火而燃烧的现象；
2
The materials and colours throughout were dictated by the existing metalfire doors and the Poliform kitchen in graphite colour was custom built to accommodate those doors.
公寓所有材料和颜色是依据现有金属防火门所选择的，包括了厨房定制石墨色橱柜。
3
At first, the gugin had only five strings, representing the five elements of metal, wood, water, fire and earth.