- Trademark: Zhongyang
- HS Code: 84779000
Specification:
Parallel twin screw diameter: Φ 18-Φ 177mm
Material:
1)W6Mo5Cr4V2
2)38CrMoAlA(JIS SACM645)
3)42CrMo(AIS14140)
4)S45C
Technics:
1)Heat treatment
2)Nitriding treatment
3)Vacuum quenching
Technical parameter:
D/d ratio: 1.55
Nitrided layer depth: >=0.4mm
Nitrided hardness: 900-1000HV
Warranty and service: 1 year
Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly
Experienced manufacture, we will be the best choice.
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Hebei Qierjie New Energy Technology co., Ltd , https://www.qejfastener.com