av永久免费观看,日韩在线精品视频,在线观看国产视频,国产精品久久片,国产毛片av网站,国产又粗又硬又黄又刺激,国产黄色片视频

Main Products
Products Grade: ER70S-6,ER70S-6G
Specifications: φ5.5mm
Applied Standard:  Q/XG 119
Characteristics: While ER70S-6 and ER70S-6G is mainly used to produce various kinds of CO2 gas shielded welding wire,argon arc welding wire and submerged welding wire of dia 0.8~1.6mm.
Applications: Wire steel
Use of Products: The product strictly controlled chemical content and the inclusions. It has characteristics of low percentage of harmful elements and good surface quality. By rational controlling the chemical composition and optimizing rolling process, the drawing and welding properties of the wire rod are guaranteed. It also has characteristics of easy drawing and mould saving when using.And the development of wire rod of ER70S-6 was granted the third class award of scientific and technological improvement by Xingtai city.