1)bormant bolt,沉头螺栓2)stainless-steel countersunk bolts,不锈钢沉头螺栓3)sink-screw,沉头螺钉4)countersunk,[建]沉头5)angle of countersunk head,沉头角6)countersunk,沉头孔
用法例句
A new construction technology of planting mail to hang and paste facing slabs on filler wall with stainless-steel countersunk bolts and structural adhesive is introduced in this paper.