GB 2330.2-1985 牵引板.pdf

UDC 621.315.6 GB 2330.2 85 To w i n g plate 1985-01-23 1985-12-01 1 2 2.1 QY 2.2 mm b hl 1 lQY-7 QY-10 QY-12 QY-16 QY-20 QY-3016 16 16 18 26 3218 20 24 26 30 3922 25 30 35 45 5738 42 52 55 75 95100 120 150 180 200 240 Q Y 3 3.1 GB 2314 85