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Tianjin Metallurgical Group Co., Ltd. is the world's largest manufacturer of seamless pipe, OCTG production base. 天津冶金集团股份有限公司是目前世界规模最大的无缝管生产企业、石油专用管生产基地。
Seamless Pipe Industry insiders estimate that trade will be brisk again, but so far did not occur. 无缝管业内人士预计贸易将会活跃起来，但目前为止没有出现。
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Heng Bo supplies seamless pipe, senior market analyst said: Jinan market today seamless price remained stable. 恒博物资的资深无缝管市场分析师透露：今日济南市场无缝管价格保持稳定。
Heng Bo supplies seamless pipe, senior market analyst recently said: Scrap prices in the East China market for a steadily. 恒博物资的资深无缝管市场分析师近日透露：在华东市场废钢价格呈现为稳中有升。
Plug Scores. Internal longitudinal grooves occurring in seamless pipe, usually caused by hard pieces of metal adhering to the high-mill plug. 划痕。通常由附着在精轧芯棒上的金属硬块造成的无缝钢管内表面上的纵向沟痕。
Heng Bo supplies seamless pipe, senior market analyst said: stainless steel waste abroad than the previous trading day unchanged. 恒博物资的资深无缝管市场分析师透露：国外不锈钢废料较前交易日没有变化。
Heng Bo supplies seamless pipe, senior market analyst recently said that in the last week, the domestic spot steel prices generally rose. 恒博物资的资深无缝管市场分析师近日表示，在刚过去的一周内，国内现货钢价普遍上涨。
Therefore, the seamless pipe market, a senior analyst said that the prospects of the market can also make a general assessment. 因此，资深无缝管市场分析师表示，也可以对市场前景做出一个大致的判断。
Heng Bo supplies seamless pipe, senior market analyst believes that the main benefit from real estate and automotive industries warmer. 恒博物资的资深无缝管市场分析师认为主要得益于房地产和汽车行业的回暖。
Heng Bo supplies seamless pipe, senior market analyst said: Today, the North scrap market consolidation trend of the whole, maintained stability. 恒博物资的资深无缝管市场分析师透露：今日北方废钢市场总体保持稳中盘整态势。
The infolding in N80 grade microalloyed seamless pipe steels was analyzed by microscopic test,SEM and chemical composition analysis of slag inclusion. N80级微合金非调质无缝钢管在生产中出现内折缺陷。采用金相检验、夹渣物的化学成分分析及扫描电镜观察等方法对该缺陷进行了分析。
The sizing process must be taken in order to eliminate the size tolerance and roundness one after the seamless pipe rolled and heat treated. 为消除无缝钢管的轧制和热处理所产生的尺寸和椭圆度误差等缺陷,一般要采用定径工艺。
Seamless pipe production process, there are two: Cross-rolling method (Meng & Mannesmann France) and the extrusion method. 无缝管的生产工艺有两种：斜轧法（孟内斯曼法）和挤压法。
Seam welded pipe as an alternative to seamless pipe and fabricated component as an alternative to a cast or forged component are not acceptable. 焊接的钢管做为无缝钢管使用和仿制部件作为压铸件来使用是不可接受的.
Liaocheng seamless pipe, according to experts, since 9 months, the import price of iron ore and sea freight are significant gains. 据聊城无缝管专家介绍，自9月以来，铁矿石进口价和海运费都有较大涨幅。
Heng Bo supplies seamless pipe, senior market analyst said: Shanghai futures market both rebar and wire rod limit. This is a steel futures market has been since the first limit. 恒博物资的资深无缝管市场分析师透露：上海期货市场的螺纹钢与线材双双跌停。这是钢材期货自上市以来的首个跌停。
Heng Bo supplies seamless pipe, senior market analyst said: This year, a substantial increase in coal imports and exports has led to a sharp contraction in the coal's attention. 恒博物资的资深无缝管市场分析师透露：今年以来，煤炭进口大量增加、出口急剧萎缩已经引起了中煤协的关注。
Seamless pipe market experts believe that in recent weeks due to an improvement in global financial markets, prices have rebounded, this initiative can be an effective measure. 无缝管市场专家认为,由于最近几周全球金融市场有所好转,物价也有所回升,这一举措是可以收效的。