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C级牙顶双合金螺杆 C-level dental top dual alloy screw 加工范围：￠16mm-￠350mm Processing range: ￠ 16mm-￠ 350mm 原料母材：SACM645、SKD61、38CrMoAL Raw material base metal: SACM645, SKD61,38CrMoAL 氮化时间：72小时表面硬度HRC55-60℃以上 Nitridation time: more than the surface hardness of HRC55-60 °C for72 hours 氮化表面深度：0.40-0.65mm Nitride surface depth :0.40-0 .65 mm 直线度：0.015mm/m Straightness: 0.015mm / m 表面光洁度：Ra0.6um Surface finish: Ra0.6um 适用于工程塑料：LCP、PA、PC、PBT、PET、POM、PPO、PE、PP、ABS、AS、PS、TPE、发泡塑料等 For engineering plastics: LCP, PA, PC, PBT, PET, POM, the PPO, thePE, PP, ABS, AS, PS, TPE, foamed plastic, etc
