minor-diameter小直径
minor-diameter steel-tube小直径钢管
minor-diameter steel-tube concrete rigid skeleton小直径钢管混凝土劲性骨架
High-precision deep hole with minor-diameter高精度小直径深孔
Minor Diameter External外花键小径
Minor Diameter Internal内花键小径
minor diameter blasting hole小直径炮眼
minor diameter tube小直径管
minor diameter of thread螺纹内径;罗纹内径