Building materials should be noncombustible.

建筑材料必须是不可燃的。

If protective walls or roofs are provided, they should be constructed of noncombustible materials.

如果提供了保护墙或屋顶，它们应用不可燃材料建造。

Insulation materials of pipe and equipment, muffler materials and adhesives should be noncombustible material.

管道和设备的保温材料、消声材料和粘结剂应为不燃烧材料或难燃烧材料。

The noncombustible oil paint is manufactured by mixing materials in weight parts: alkyd resin accounting for 5 to 30 parts;

不燃油漆，主要由下述重量份数的 原料混合制得：醇酸树脂5～30；