>自己注冊上下分 24h在線客服! " />

    NEXT
    PREV
     
    Product

    Specifications: Φ45/90mm-Φ92/188mm
    Materials and Technology:
    1. 38CrMoALA nitriding treatment
    Nitriding depth: 0.5-0.8mm, nitriding hardness: HV≥920
    2. 42CrMo Plating: induction hardening + plating / double metal plating PTA +
    Chrome hardness: ≥HV800, thickness 0.03-0.05mm, roughness Ra0.2um
    3. SKD61 quenching, vacuum quenching overall hardening treatment
    Hardness index: HRC> 55-58, straightness 0.015mm / m, roughness Ra0.4um
    4. 9Cr18Mov vacuum hardening, CNC circular grinding
    Hardness index: HRC> 50-55, straightness 0.015mm / m, roughness Ra0.4um

    All rights:Zhoushan City Weida Machinery Co.,Ltd. Add:No.2 Road Dinghai District Jintang Town,Jinshan Industrial District,Zhoushan City 浙ICP備13024562號 Technical support:93BAIDU
    中文字字幕在线综合亚洲,深夜福利亚洲精品无码视频,亚洲精品无码中文成人,一级a做片性频无码鲁鲁网