工字钢：工字钢钢质型材的一种，也称钢梁，是截面为工字形的长条钢材--由此得名“工字钢”。 工字钢 规格及型号 其规格以腰高的毫数表示，如“工160×88×6”，即表示腰高为160毫米，腿宽为88毫米，腰厚为6毫米的工字钢。 标称规格 工字钢的规格也可用型号表示，型号表示腰高的厘米数，如工16#。Namely:toformasolidsolutionwithiron。
I-steel: a steel bar of I-steel, also known as steel beam, is a long steel section of the cross section, which is called "i-i-steel". The specificati*** and types of I-steel are represented by the number of waist height, such as "160 x 88 x 6", that is, I-bar with waist height of 160 mm, leg width of 88 mm and waist thickness of 6 mm. The specificati*** of the nominal size of the I-steel can also be expressed by the model, and the size of the height of the waist is centimetre, such as the 16#.
胶合板是由三层或多层一毫米左右的实木单板或薄板胶贴热压制成，常见的有三夹板、五夹板、九夹板和十二夹板（俗称三合板，五厘板，九厘板，十二厘板）。
Plywood is made of three or more than one millimeter of solid wood veneer or thin plate with hot pressing. There are three splints, five splints, nine splints and twelve splints (commonly known as three plywood, five millimeter, nine millimeter, twelve millimeter).