ductile cast-iron pipe

常见例句

双语例句

• The relationships between C, Si contents and ferrite amount in centrifugal cast ductile iron pipe produced with resin-bonded sand mould are briefly presented.
  简述了在树脂砂型离心铸造球铁管时，管中碳、硅含量与铸态铁素体含量问的关系；
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