槽鋼按形狀又可分為4種：冷彎等邊槽鋼、冷彎不等邊槽鋼、冷彎內(nèi)卷邊槽鋼、冷彎外卷邊

依照鋼結(jié)構(gòu)的理論來說，應(yīng)該是槽鋼翼板受力，就是說槽鋼應(yīng)該立著槽鋼，普通槽鋼規(guī)格而不是趴著。

According to the channel shape and can be divided into 4 kinds: cold bending equilateral channels, cold-formed non equilateral channel steel, cold rolled steel, cold bending edge edge

According to the theory of steel structure, it should be the force of the channel steel wing plate, that is to say the channel steel should stand the channel steel, ordinary channel steel specification rather than lie.

型材按生產(chǎn)方法可以分成熱軋型材、冷彎型材、冷軋型材、冷拔型材、擠壓型材、鍛壓型材、熱彎型材、焊接型材和特殊軋制型材等。其規(guī)格以腰高*腿寬(b)*腰厚(d)的毫米數(shù)表示，如150*78*9。型材按其橫斷面形狀可分成簡單斷面型材和復(fù)雜斷面型材。簡單斷面型材的橫斷面對稱、外形比較均勻、簡單，如圓鋼、線材、方鋼和扃鋼等。復(fù)雜斷面型材又稱為異型斷面型材，其特征是橫斷面具有明顯凸凹分支。

合金元素與鐵、碳的相互作用

合金元素加入鋼中后，主要以三種形式存在鋼中。即：與鐵形成固溶體；與碳形成碳化物；在高合金鋼中還可能形成金屬間化合物。

The interaction of alloying elements with iron and carbon

When alloy elements are added to steel, they mainly exist in three forms. Namely: to form a solid solution with iron; carbide and carbon; in high alloy steels are also likely to form intermetallic compounds.

裝飾單板貼面膠合板（裝飾面板、貼面板），是將精密刨切成厚度為0.2 mm以上的薄木皮，以膠合板為基材，經(jīng)過膠粘工藝制作而成的具有單面裝飾作用的裝飾板材。

Decorative veneer veneer plywood (decorative panel, veneer) is a decorative plank which is made of a veneer with a veneer of 0.2 mm thickness and plywood as the base material.