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第九届全国无缝钢管生产技术信息交流会将于１９９４年１０月在安徽合肥召开ＴＨＥ９ＴＨＮＡＴＩＯＮＡＬＩＮＦＯＲＭＡＴＩＯＮＳＥＭＩＮＡＲＯＮＳＥＡＭＬＥＳＳＳＴＥＥＬＴＵＢＥＰＲＯＤＵＣＴＩＯＮＴＥＣＨＮＯＬＯＧＹＴＯＢＥＨＥＬＤＩＮＯｃｔ．，１９９４...
Ninth National Seamless Steel Tube Production Technology Information Exchange Conference will be held in October 1994 in Hefei, Anhui THE9THINNING INFORMATIONSEMINARONSEAMLESSSTEELTUBEPRODUCTIONTECHNOLOGYTOBEHELDINOct. , 1994 ...