代写论文：安全施工
用于安全施工的原材料会根据时间和目前的需求而有所不同。过去，安全施工大都是用钢门完成的。但是，由于这些安全施工的安全性，由于用乙炔火炬切割门的形式而受到严格的审查，需要使用铸铁和混凝土或其他材料。最小的钢筋混凝土，炉膛钢和钢是一些使用的材料，而不同形式的特定钢材最常用于银行保险库和保险箱。例如，“等同于至少1的材料的主体壁”最小拉伸强度为50,000P.S.I的平炉钢是描述根据所需的防盗分类使用的材料之一。这些分类将导致选择具体的拉伸强度，最终形成最终的工作。如果在全球范围内经常使用Underwriter Laboratories标准，则可根据需要应用通过UL标准分类为不同类别强度的不同形式的钢材。
代写论文：安全施工
The raw materials that are used in safe construction would vary based on time and the current needs. In the past, safe construction was mostly done with steel doors. However, then, as the security of these safe construction, came under scrutiny because of the breach in the form of cutting of doors with acetylene torches, and it was necessary to use cast iron with concrete or other materials. Minimum reinforcement concrete, hearth steel, and steel are some materials used, and in specific steel of different forms is the most used for bank vault and safes. For instance, “Body walls of material equivalent to at least 1″ open hearth steel with a minimum tensile strength of 50,000 P.S.I” is the description of one of the material used as per the required burglary defence classification. These classifications will lead to the selection of specific tensile strength and ultimately the final work is formed. Underwriter Laboratories standard if often used worldwide, so different forms of steel classified into different class strengths by UL standards can be applied based on the need.
