采用三转角轧制法轧制厚壁管和相反的操作法轧制薄壁管可消除喇叭口与尾三角。
The end trumpet and end triangle can be eliminated if a rolling process with three angles rotating is used for thick wall pipe rolling and other processes for thin wall pipe rolling.
“那是呈绿色黑色的动物，头部是圆的，有个10 公分长的喇叭状的兽角，”其中一个军人说道。
"It was greenish-black and had a round head with 10-centimetre horns", one of the soldiers said.
我公司主导产品为钻尾螺丝系列(六角华司头、盘头、钮扣头、喇叭头、六角法兰头、小仔头等)，同时也生产干壁钉、纤维板钉和自攻钉等自攻类螺丝。
Our company is main products are series of drilling screws, and mean-while we also have sub production line for Drywall screw, Chipboard screw, and Tapping etc.
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