工字钢也称为钢梁（英文名称 I Beam)，是截面为工字形状的长条钢材。工字钢分普通工字钢和轻型工字钢，H型钢三种。工字钢广泛用于各种建筑结构、桥梁、车辆、支架、机械等。
I-steel beam (also known as English name I Beam), is an H-shaped steel strip section. I-steel is divided into three kinds: ordinary I-steel and light I-steel, H type steel. I-steel is widely used in various architectural structures, bridges, vehicles, stents, machinery and so on.
按***用途分，有油桶用板、搪瓷用板、弹板用板等；按表面涂镀层分，有镀锌薄板、镀锡薄板、镀铅薄板、塑料复合钢板等。
According to professional use, there are oil board, enamel plate, bulletproof plate and so on. According to surface coating, there are galvanized sheet, tin plate, leaded sheet, plastic steel plate and so on.
装饰单板贴面胶合板（装饰面板、贴面板），是将精密刨切成厚度为0.2 mm以上的薄木皮，以胶合板为基材，经过胶粘工艺制作而成的具有单面装饰作用的装饰板材。
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.