规格 φd E7 φD r6 φA L1 L
JDBB-12×15 12 +0.050
+0.032 18 +0.034
+0.
JDBB-16×20 16 22 +0.041
+0.
JDBB-20×25 20 +0.061
+0.25
JDBB-25×30 25 33 +0.050
+0.
JDBB-30×35 30 +0.075
+0.35
JDBB-40×45 40 50 60 40 45
JDBB-50×55 50 62 +0.060
+0.
JDBB-60×65 65 +0.090
+0.060 75 +0.062
+0.