4 m height of steel structure 什么意思(保温规定)? Insulation for fire protection shall be applied to the equipment supports to the necessary extent in view of fire protection. The range of the insulation shall generally be 4 m height of steel structure and skirt of equipment up to tangential line. (设备消防保温要求) 请教标红处理解?保温范围到底是什么? 查看更多1个回答 . 5人已关注