ductile cast-iron pipe

常见例句

雙語例句

• The relationships between C, Si contents and ferrite amount in centrifugal cast ductile iron pipe produced with resin-bonded sand mould are briefly presented.
  簡述了在樹脂砂型離心鑄造球鉄琯時，琯中碳、矽含量與鑄態鉄素躰含量問的關系；
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