Archimedean screw pump coupling 螺旋泵联轴器

sealed screw pump coupling 密闭式螺杆泵联轴器

double entry screw pump coupling 双吸螺杆泵联轴器

airtight screw pump coupling 密闭式螺杆泵联轴器

hermetic screw pump coupling 密闭式螺杆泵联轴器

reversible screw pump coupling 可逆式螺杆泵联轴器

hyperbolic screw pump coupling 双曲线式罗杆泵联轴器

two screw pump coupling 双螺杆泵联轴器

square thread screw pump coupling 矩形螺杆泵联轴器