SQUARE HEAD BOLTS 四角螺丝 ; 方头螺栓 ; 四角螺晋 ; 广场头螺栓
Flat countersink square neck bolts 沉头方颈螺栓 ; 沉头方颈
Mushroom head square neck bolts 平圆头方颈螺栓
Square head bolts-Product grade C 方头螺栓
cuhead square neck bolts 半圆头方螺栓 ; 半圆头方
SQUARE HEAD BOLTS Series 本原企业股份有限公司
Countersunk Square Neck Bolts 沉头方颈螺栓
Round Head Square Neck Bolts 圆头方颈螺栓
t-head bolts with square neck 型方颈螺栓 ; T型方颈螺栓
The door of the dining-room, which, as we have said, opened directly on the cathedral square, had formerly been ornamented with locks and bolts like the door of a prison.
餐室的门，我们已经说过，开出去便是天主堂前面的广场，从前是装了锁和铁闩的，正象一扇牢门。
The cup head square neck bolts are made on the multiple station cold header, and cut squeeze technology is used to get the square neck.
用多工位冷镦机生产半圆头方颈螺栓 ，对方颈部分的成形采用切挤成形工艺 ，用这种方法生产的产品 ，外形美观 ，质量稳定。
Based on the research of steel housing industry, a new outer-shell joint connecting cold-formed square tubular column and H-shaped steel beam with bolts was designed.
结合钢结构住宅产业化的研究，设计了冷弯方钢管与H型钢梁的螺栓连接外套管式节点。
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