介绍了本标准的编制过程及对有缝管材尺寸偏差、力学性能、表面质量等方面的规定。
The requirements of dimensions, mechnical properties, surface quality on aluminium alloy seam tubes are explained.
冷轧钢板和钢带的尺寸，外形，重量及允许偏差。
Dimension, shape, weight and tolerance for code - rolled steel plates and sheets.
商品图片及尺寸都是由厂家提供，有可能因测量方式不同而出现偏差，以实物为准。
The pictures and sizes are provided by our suppliers, actual product may slightly different with given measurement here due to people vary in measurement method.
商品图片及尺寸都是由厂家提供，有可能因测量方式不同而出现偏差，以实物为准。
The pictures and sizes are provided by our suppliers, actual product may slightly different with given measurement here due to people vary in measurement method.
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