2、28 hour carburizing process
4、Needle shaft material：40Cr
5、High frequency quenching treatment
6、Four axis CNC machining center production
Q : Can I get samples? A: Yes, you can get sample from our existing products. Q: Can I get the sample designed by myself? A: Of course, and we will return the sample fee back to you after mass production. Q: Can I print our own logo and choose color? A: Sure. Q: What’s your advantages? A: 1. Over 20 years experience both in producing and exporting. 2. Good quality with competitive price. 3. Satisfactory pre-sales and after-sales service. 4. All products can be customized.