크기 (L x W x H) (mm)
Customer's Drawing
Grade
8.8 10.9 or customized
Material
Q235, 35K,35#, 45#, 40Cr, 40CrM
Certification
ISO9001:2008
Quality Control
Inspection on each workshift
Type
Customized Tunnel Bolt
Finish
Plain (oiled), Bluing, Zinc, HDG, etc
Service
Manufacturing, Designing, OEM