国产欧美激情日韩成人三区|成A∨人片在线观看无码|91欧美精品午夜性色福利在线|亚洲一级黄色,男人的天堂久久久,久久综合操,国产超级乱淫视频播放免费

Main Products
steel for anchor-chain Products>> Main Products>> steel for anchor-chain
Products Grade: 20Mn2
Specifications: φ8.0～12.0mm
Applied Standard:  agreement
Characteristics: he producrs is used to produce hoisting machinery production such as chain, lifting steel strapping, self-assembled hanger of chain hoist etc, with the size of φ6mm,φ8mm,φ10mm.
Applications: Common mechanical steel
Use of Products: 20Mn2 is a commom steel which is used to produce chain and sling. The product has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, good surface quality etc.. It has stable heat-treatment properties after annealing process.