两边不同的螺丝可配合
大部分型号的双针车及绷缝车
Two different screw can be suitable for
most of the double needle machine and
covering-stitch machine.
螺丝直径 Diameter of Screw :
A: 5mm B: 4mm
螺纹间距 Thread Space:
A: .0.8mm B: 0.7mm
支架长杆直径 Diameter of the long bar: 8mm