Product Specifications
hollow bolts
7 X 24 Hours One Week
One Year
SGS
AISI, ASME, ANSI, JIS, GB
Spray-Paint
Hot Rolled
Carbon Steel, Alloy Steel
ISO
+0/-0.2mm
Ultrasonic Test
Annealed
Allowed
Mtc
Within 7days
Surrounding Rock System Shoring and Supporting
1tons
Plastic Clothes Wrapping
Xinruyi Steel
Wrapped by Plastic Clothes
OD20-40mm
Shandong, China