1.
Effect of Holding Time on TLP Bonding of 20 Steel Pipes
保温时间对20钢管道瞬时液相扩散连接的影响
2.
The materials of semicircle seamless steel tube can fall into carbon steel (20#) and stainless steel (321).
半圆无缝管材质有碳钢（20#钢）和不锈钢（321钢）。
3.
STUDY ON THE PROPERTIES OF STRUCTURAL TUBE PRODUCED BY USING CC 20 STEEL ROUND BILLET
20钢连铸圆坯生产结构管的性能研究
4.
Practice of 20~# Tube Blank Steel Produced by EAF with Compact Process
电炉短流程生产20~#管坯钢工艺实践
5.
Welding of the big diameter X80 pipe in low temperature environment of -20℃
-20℃低温环境下大口径X80钢管的焊接
6.
Coating Structure of 20 Steel Heat Exchanger Tube by Hot-dip Aluminizing
热浸镀铝20钢换热器管束的镀层结构
7.
CAUSE ANALYSIS FOR CRACKS IN 20# HOT ROLLED PIPE BILLET STEEL AND IMPROVING MEASURES
20#热轧管坯用钢裂纹成因分析及改进措施
8.
The ceramic-lined steel composite pipe has exceptional resistance to abrasion. Its service life in materials transportation with hard abrasives is more than20 times longer than in common steel pipe.
陶瓷内衬复合钢管具有优异的耐磨损性，其使用寿命是普通钢管的20倍以上。
9.
Experimental Study on Material Corrosion Behavior and Mechanism for 20~# Pipeline Steel in Near-neutral Soil
近中性土壤中20~#钢管道材料腐蚀行为与机理的研究
10.
Laser Remelting on Surfaces of 20 Steel and 5CrNiMo Steel after Boronization;
20钢和5CrNiMo钢表面渗硼后的激光重熔
11.
The Enteprise Can Produce More Than 20kinds Of Steel,Such As 316,304,316l,17-4ph,Wcb And High Nichel Base Alloy.
产品：以及镍基合金等20余个钢种的阀门、管件、五金件、汽车零件等精密铸件。
12.
Constructed with20*20 square steel tube. coated with epoxy resin powder on the surface.
· 20*20 方钢结构，表面经环氧树脂静电粉末喷涂。
13.
The Research of Carbonitriding with Rare Earth for the 20 Steel Ring in Poisonless Salt Liquid;
20钢制纺织钢领无毒液体C-N-Re共渗研究
14.
Research of Welding Speciality and Mechanism of New-style Wearing Resistant Cast Steel and 20 Steel;
新型抗磨铸钢与20钢的焊接特性及机理研究
15.
Research of Improving the Guality of the Fine Guality Carbon Structural 20# Steel Plate.;
提高优质碳素结构钢(20#)钢板质量的研究
16.
stainless steel wire wrapped scree
不锈钢钢丝绕制筛管
17.
Steel strips for welded steel pipe
GB/T8164-1993焊接钢管用钢带
18.
Sales (Profits / Steel output) plunged by 20 %.
销售额(利润／钢铁)产量猛跌了20％。