日韩国产亚洲一区二区三区,婷婷四虎东京热无码群交双飞视频,日韩精品一区二区三区水蜜桃,国产又黄又爽免费观看,最近免费观看高清韩国日本电影,中文字幕亚洲一区二区三区四,成熟丰满熟妇AV无码区,精品国产乱码久久久久APP下载,99热国产综合精品免费

Products<

Accessories

產(chǎn)品介紹

Material:38CrMoAlA, Tungsten alloy, SKD61, 45CrMo
Treatment: Nitriding treatment, Foundry, Quenching



Nitriding Layer Depth 0.5-0.8mm Nitriding Fragility ≤一級
Nitriding Layer Hardness 900-1020HV Surface Roughness Ra 0.4μm

  We can provide corresponding support accessories based on users’ demand, such as over-rubber heads, over-robber rings,nuzzle nut,flange, etc.

Copyright 2008,Zhoushan Jianghai Screws Manufacture Co., Ltd. All Rights Reserved.

Imprint | Copyright | Privacy | Terms of Use | Site Map