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: 0Cr17
Specifications: φ5.5~38mm
Applied Standard:  agreement
Characteristics: steel wire , fastener, kitchen appliance
Applications: Stainless steel fasteners
Use of Products: 0Cr17 is ferritic stainless steel, it is an all-purpose steel grade.It has low thermal expansion ratio, excellent corrosion- resistant, good formability and low price.