①胶合板有正反面的区别。挑选时，胶合板要木纹清晰，正面光洁平滑，不毛糙，要平整无滞手感。
②胶合板不应有破损、碰伤、硬伤、疤节等疵点。
1.the difference between the plywood and the and negative sides. When selecting， plywood should be clear， ***ooth， ***ooth，圣霖板材价格， and ***ooth.
2. Plywood should not be damaged， bruised， hard or scarred.
工字钢如名所示，是一种“工”字形截面型钢，上下翼缘内表面有倾斜度，一般为1：6，使得翼缘外薄而内厚，因此造成工字钢在两个主平面的截面特性相差巨大，在应用中难以发挥刚才的强度特性。虽然工字钢市场上上也出现了加厚工字钢，但工字钢的结构已经决定了其抗扭性能短板。
I like the name suggests， is a kind of I-shaped section steel flange on the inner surface of slope is generally 1:6， the flange and the thickness of thin， resulting in two main characteristics of I-beam section plane is huge， just to play strength characteristics in the application. Although the I-steel market has also appeared to be thickened I-steel， the structure of I-steel has already determined its torsional performance.
有的胶合板是将两个不同纹路的单板贴在一起制成的，所以在选择上要注意夹板拼缝处应严密，板材，没有高低不平现象。挑选胶合板时，应注意挑选不散胶的胶合板。如果手敲胶合板各部位时，声音发脆，则证明质量良好，若声音发闷，圣霖板材购买，则表示胶合板已出现散胶现象。
Some plywood plywood is made of two different lines of the single board together，板材哪家好， so in the choice of the splints should be careful to pay attention to the joint， there is no uneven phenomenon. When choosing plywood， you should pay attention to selecting plywood without glue. If the hand knocks on the plywood parts， the sound is crisp， which proves that the quality is good. If the voice is stuffy， it means that the plywood has already appeared loose glue phenomenon.
圣霖板材购买-圣霖国际【创新发展】-板材由鞍山市圣霖进出口贸易有限公司提供。鞍山市圣霖进出口贸易有限公司（）位于辽宁省鞍山市高新区越岭路256号（研发中心A座2号楼510室至511室）。在市场经济的浪潮中拼博和发展，目前圣霖国际在行业专用设备中享有良好的声誉。圣霖国际取得商盟认证，我们的服务和管理水平也达到了一个新的高度。圣霖国际全体员工愿与各界有识之士共同发展，共创美好未来。