Specification:
1. Materai: Aluminum, Brass, Steel or other customized requests SUS201,SUS304,SUS316,A2-70,A2-80,A4-80,4.8 6.8 8.8 10.9 12.9
2. Size: M4-M16
3. Standard: DIN GB ISO JIS BA ANSI
4. Certification: ISO9001, SGS, ROHS
5.Model: BLFC-043
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