常見(jiàn)例句

雙語(yǔ)例句

• True or False: A lag screw and a hex head machine bolt of the same diameter will take the same size masonary anchor?
  是非題：拉力螺釘和相同直逕的機(jī)用螺栓是否取自相同的甎石錨栓？
返回 lag bolt