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
for Prestressed Steel Products>> Main Products>> for Prestressed Steel
Products Grade: U183,SWRH82B-2
Specifications: φ5.5~16mm
Applied Standard:  agreement
Characteristics: The wire rod of U183 is mainly used for the pruduction of steel strand for mining anchoring.
Applications: Prestressed steel
Use of Products: The wire rod of U183 makes the feature of stable chemical composition, lower harmful elements, higher cleanness,minor decarburization, perfect surface quality, high sorbite ratio, uniform properties along the coil and excellent drawing performance.