普通工字钢和轻型工字钢的型号是用其腰高厘米数的阿拉伯数字来表示，腹板、翼缘厚度和翼缘宽度不同其规格以腰高×腿宽(b)×腰厚(d)的毫数表示，如“普工160×88×6”。

The ordinary beam and light I-beam model is the digital Arabia with its waist high cm number to represent, web and flange thickness and flange width of different specificati to the waist high (H) * (b) * waist leg width thickness (d). The number of said, such as "general 160 x 88 x 6"

槽钢按形状又可分为4种：冷弯等边槽钢、冷弯不等边槽钢、冷弯内卷边槽钢、冷弯外卷边

依照钢结构的理论来说，应该是槽钢翼板受力，就是说槽钢应该立着槽钢，普通槽钢规格而不是趴着。

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.

细木工板比实木板材稳定性强，但怕潮湿，施工中应注意避免用在厨卫。

细木工板的加工工艺分机拼和手拼两种，手工拼制是用人工将木条镶入夹板中，木条受到的挤压力差，不能据切加工，只适宜做部分装修的子项目，如做实木地板的垫层毛板等。

Blockboard is more stable than solid wood, but it is afraid of humidity. In ctruction, it should be ***oided in kitchen and toilet.

The processing technology of the carpenter board is divided into two kinds. The manual spelling is to insert the wooden bar into the splint, the squeezing pressure of the wooden bar is poor, it can not be cut by cutting, it is only suitable for the subproject of partial decoration, such as the cushion coat of the solid wood floor.

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, pay attention to whether the nominal thickness of plywood is in line with the actual thickness.