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                 → Products
                High strength pre-tension yieldable bolt IⅠR 〔Patent pending〕
                High strength pre-tension yieldable bolt Ⅱ R 〔Patent pending〕
                High strength pre-tension bolt Ⅰ 〔Patent pending〕
                High strength pre-tension bolt Ⅱ 〔Patent pending〕
                Common strength pre-tension bolt Ⅰ 〔Patent pending〕
                Common strength pre-tension bolt Ⅱ 〔Patent pending〕
                INSTal Bolt
                Cable Bolts
                Cable Bolts

                High pre-tension spiral bolt

                High pre-tension snake bolt
                Post Grouting Bolt
                MechLok
                Friction-Lok Stabilizer
                All Thread Bar Bolt
                YIELD-LOK Bolt
                E-RAY Bolt
                Plate
                 → Contact
                Address:Jennmar Industry Park, Tongji Road, Gaoxin District, Jining, Shandong, China
                Tel:0537-2480366, 2480336
                Fax:0537-2480338
                Contact:Li Li
                E-mail:liliyf2@163.com
                E-RAY Bolt

                Special rolled bar has extraordinary energy absorbing capacity.
                Special made yieldable device can release impact energy based on the design.
                High strength
                Specially applied in rock burst and dynamic stress conditions.

                 

                 

                 

                 

                Rocbolt Technologies China Ltd