半圆: semicircle头: 5点就得动身 have to start before ...螺栓: bolt; screw bolt; threaded b ...半圆头埋头螺栓: linsenkopfschraube带榫大半圆头螺栓: nibbed large oval head bolt多齿半圆头埋头螺栓: vielzahn-li-se-shr半圆头螺钉: button headed screw; button-headed screw; cup head screw; half-round head screw; half-round screw; round head screw半圆头螺丝: half-round head screw扁圆头螺栓: buttonhead bolt椭圆头螺栓: oval head bolt圆头螺栓: button head bolt; case bolt; cheese head bolt; cheese-head bolt; cuhead bolt; cuphead bolt; round head bolt; round head button bolt; round headed bolt; round-head bolt; round-headed bolt; snap bead bolt白铁圆头螺栓: galvanized iron mush-room head bolt镀锌圆头螺栓: galvanized mushroom head bolt半圆头方螺栓: cuhead square neck bolts半圆沉头螺栓: half round countersunk head bolt金属半圆头螺钉: metal screw with half-round head半圆头带榫螺栓: cuhead nib bolts半圆头方颈螺栓: cuhead square neck bolt; half-round head square neck bolt; stebolt大半圆头带榫螺栓: cuhead nib bolts with large head大半圆头方颈螺栓: cuhead square neck bolts with large head product grade黄铜圆头螺栓和螺母: brass bolts and nuts with round head半圆头带插销马车螺栓: cuhead nib bolts半圆头埋头法兰螺栓: in-6rd-li-flsh-shr加强半圆头方颈螺栓: strong oval head square neck bolt小半圆头低方颈螺栓: cuhead square neck bolts with small head and short neck-product grade