>自己注冊上下分 24h在線客服! " />

一区二区三区四区精品视频,AAA网站免费无码,本色无码视频,国产亚洲日韩在线不卡

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
主站蜘蛛池模板: 惠安县| 佛学| 邵东县| 睢宁县| 临沧市| 肃南| 洱源县| 安岳县| 凤城市| 延庆县| 安龙县| 珲春市| 石嘴山市| 察隅县| 闽侯县| 当涂县| 微山县| 九江县| 泽州县| 宝应县| 佛教| 万山特区| 安达市| 道真| 濮阳市| 旌德县| 罗城| 嘉定区| 洛浦县| 托克托县| 富宁县| 乌什县| 西乡县| 邯郸市| 望都县| 霍州市| 平定县| 中牟县| 文安县| 新野县| 如东县|