弯曲度：工字钢高度小于或等于400MM时，每米弯曲度不得大于1.5MM，圣霖工字钢价格，总弯曲度不得大于总长度的0.15%。高度大于400MM时，每米弯曲度不得大于1.0MM，总弯曲度不得大于总长度的0.1%。
Bending degree: when the height of the I-steel is less than or equal to 400MM， the bending degree of each meter must not be more than 1.5MM， and the total bending degree should not be more than 0.15% of the total length. When the height is greater than 400MM， the bending degree of each meter must not be more than 1.0MM， and the total bending degree should not be more than 0.1% of the total length.
选择胶合板主要看其甲醛释放量和胶合强度。如果胶合板的胶合强度不好，容易散架。选择时注意胶合板的标称厚度与实际厚度是否相符。
The choice of plywood mainly depends on its formaldehyde emission and bonding strength. If the gluing strength of plywood is not good， it is easy to fall apart. When choosing，圣霖工字钢报价， pay attention to whether the nominal thickness of plywood is in line with the actual thickness.
随着科学技术和工业的发展，对材料提出了更高的要求，如更高的强度，圣霖工字钢批发，抗高温、高压、低温，耐腐蚀、磨损以及其它特殊物理、化学性能的要求，碳钢已不能完全满足要求。
With the development of science and technology and industry， the material has put forward higher requirements， such as higher strength， high temperature，圣霖工字钢， high pressure， low temperature， corrosion resistance， wear and other special physical and chemical properties， carbon steel can not fully meet the requirements.
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