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                                                        鋼帶厚度允許偏差:


                                                        JIS4305(ET) ASTM A480M GB/T 4239
                                                        <160 ≥160
                                                        <250
                                                        ≥250
                                                        <400
                                                        ≥400
                                                        <600
                                                        >5
                                                        ≤25
                                                        >25
                                                        ≤76
                                                        >76
                                                        ≤150
                                                        >150
                                                        ≤300
                                                        >20
                                                        ≤150
                                                        >150
                                                        ≤250
                                                        >250
                                                        ≤400
                                                        >400
                                                        ≤600
                                                        <0.10 ±0.01 ±0.020 - - ±10% ±10% =10% ±10% ±0.010 ±0.010 =0.010 -
                                                        ≥0.10-0.16 ±0.015 ±0.020 - - ±10% ±10% =10% ±10% ±0.010 ±0.010 =0.010 -
                                                        ≥0.16-0.25 ±0.020 ±0.025 ±0.030 ±0.030 ±0.04 ±0.04 =0.04 ±0.40 ±0.010 ±0.010 =0.010 -
                                                        ≥0.25-0.40 ±0.025 ±0.030 ±0.035 ±0.035 ±0.05 ±0.05 =0.05 ±0.06 ±0.020 ±0.020 ±0.020 ±0.020
                                                        ≥0.40-0.60 ±0.035 ±0.040 ±0.040 ±0.040 ±0.06 ±0.06 =0.06 ±0.06 ±0.020 =0.020 ±0.020 ±0.030
                                                        ≥0.60-0.80 ±0.040td> ±0.045 ±0.045 ±0.045 ±0.06 ±0.06 ±0.06 ±0.09 =0.030 =0.030 ±0.030 ±0.040

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