GBT342-2017 冷拉圆钢丝、方钢丝、六角钢丝尺寸、外形、重量及允许偏差.pdfVIP

ICS 77.140.65 H 49 GB/T 3422017 GB/T 3421997 . . , Dimension ,shape,mass and tolerance of cold-drawn round square and hexagonal steel Wires (ISO 22034-2:2016,Steel wire and wire products Part 2: Tolerances on wlre dimenslons,NEOQ) 2017-11-01 2018-07-01 0 J/ GB/T 3422017 - | 9 200 1 GB7/T 1. T 7 . B/ 42 99 . . . G 3 1 2 B/T 4 997 : G 3 1 . ; ; ;