常見例句

雙語例句

• Machine barrel and screw arbor of extrusion machine both adopt quality alloy steel, with nitriding and fine machining.
  擠出機(jī)的機(jī)筒、螺桿均采用優(yōu)質(zhì)合金鋼，經(jīng)氮化和精密加工。
返回 barrel arbor