seamless tube

The general occurrence and distribution of internal surface hollow and hole defect of hot continuous rolled seamless tube are introduced.

介绍了热连轧无缝钢管内表面凹坑、孔洞缺陷的基本形式和分布规律。

The forming technology of big-diameter square or rectangle steel tube is dividing into the cold curved welded square tube and the seamless steel square tube, and the cold curved welded square tube is mainly in China.

大口径方矩形管生产按成形工艺主要分冷弯焊管成方和无缝钢管成方两种形式，在国内主要还是以冷弯焊管为主。

Development of round billet of heat resistant stainless steel seamless tube for high pressure boiler

高压锅炉用耐热不锈钢无缝钢管圆管坯的研制

Flanging die design in passenger car manufacturing was emphasized Flanging theory of seamless tube was introduced.

着重介绍应用于客车制造业中的无缝钢管以及在管壁预制孔的边缘弯曲成一定角度即翻边的模具设计.

In the main operating board, Ship Plate and seamless tube.

主要经营中板, 船板及无缝管.

Main screw steel, wire rod, bar, seamless tube, pipe, plate and profiles, and other products.

主营螺纹钢 、 线材 、 圆钢 、 无缝管 、 焊管 、 中厚板及型材等产品.

And for users Daigou sales agency, the joint sales Chuanhuan swap backlog of seamless tube.

并可为用户代购代销 、 联合销售串换调剂积压的各种无缝管.

Computer simulation of three dimensional velocity fields in seamless tube cross rolling process

钢管斜轧延伸变形区中工具三维运动速度场计算机模拟

The results showed, that tube was welding tube, it wast the seamless steel tube.

结果表明, 该钢管实为焊管, 不是技术规范所要求的无缝钢管.

Production and Application of Seamless Tube and Pipe of Steel 91

钢91无缝钢管的生产和应用

Interpretative structural model for wall thickness accuracy of seamless steel tube

无缝钢管壁厚精度的解释结构模型

Expected short-term liaocheng market prices will remain weak seamless tube consolidation of the operation.

预计 短期 内聊城市场无缝管价格将保持弱势盘整的运行态势.

Discussion on Necessity for Obsoleting Backward Seamless Steel Tube-making Equipment at Home in Terms of Production Setup and Dependence on Export of Seamless Steel Tube Industry

从无缝钢管生产格局和出口依存度现状分析我国淘汰落后无缝钢管装备的必要性

China is the first great-power on producing and consuming of seamless tube in the world, which the degree of self-sufficiency is over 106%.

我国目前是世界热轧无缝钢管生产消费第一大国，自给率已超过106%。

Study on Rolling Process of the Thick Wall Seamless Tube

厚壁无缝管轧制工艺研究

The Practice of Hot Rolling Technology Reformation of Seamless Tube Plant

长钢无缝钢管厂热轧技术改造实践

The operating seamless tube, angle, channel, I-beam and steel.

公司经营无缝管, 角钢 、 槽钢 、 工字钢,以及钢板.

Present Status and Development of Alloy Steel Seamless Tube

合金钢无缝钢管的现状和发展

China steel tube trade is being a turning point, concerning which should take the first place between seamless tube and welded tube.

目前中国的钢管业正处在一个新的发展转折点和平衡点，尤其是无缝管和焊管的争论已成为近几年的焦点。

The products are widely used in the manufacturing of seamless tube and high pressure boiler tube.

该产品广泛用于制造无缝钢管,高压锅炉管等行业.

Study of the application of thermomechanical treatment in seamless tube production analysis of seamless tube production in China

形变热处理在无缝钢管生产中应用的研究我国无缝钢管生产分析

New progress in production of seamless tube for power station boiler use

电站锅炉用无缝管材的新发展