国内精品久久久久久久日韩,成人国产视频在线观看,亚洲精品国产一区二区,少妇一级淫片免费放在线,视色av,国产精品美女久久久av,蜜桃av网站

Main Products
Products Grade: 1.4104
Specifications: φ5.5-38mm
Applied Standard:  DIN 17440/EN 10088/Agreement
Characteristics: throttle valve
Applications: free-cutting stainless steel
Use of Products: Compared with Y1Cr17, 1.4104 has higher content carbon and molybdenum , so it has high strength and good corrosion resistance ，Widely used in processing auto parts.