1、济南铝板http://www.jngdly.com/表面不允许有裂纹、腐蚀斑点和硝盐痕迹。
2、济南铝板表面上允许有深度不超过缺陷所在部位壁厚公称尺寸8%的起皮、气泡、表面粗超和局部机械损伤，但缺陷最大深度不能超过0.5mm，缺陷总面积不超过板材总面积的5%。
3、济南铝板http://www.jngdly.com/允许供货方沿型材纵向打光至表面光滑，其他要求有需求方和供货方自己拟定。
济南亘安信息提供技术支持：http://www.jngenan.com/
Jinan aluminum surface does not allow cracks, corrosion spots and nitrate traces.
Allow Jinan aluminum surface defects on the site where the depth does not exceed the nominal wall thickness of 8% from the size of the skin, bubbles, surface roughness and local super mechanical damage, but can not exceed the maximum defect depth 0.5mm, the total area of the defect does not exceed the total area of the plate 5%.
Jinan aluminum allows the supplier to the lighting along the longitudinal profile, smooth surface, the other requires a demand-side and supply side drawn up.
