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Description:

mining chain
1.material:high quality alloy steel (DIN17115)
2.finsh: rust preventive oil coating or black painted, zinc plated

mining chain
1.material:high quality alloy steel (DIN17115)
2.finsh: rust preventive oil coating or black painted, zinc plated, etc.

3.breaking elongation:12%max

4.Note :the dimesion and properties completely conform to gradeB and grade C requirement  specified in the nationalindustrial standard GB/T12718 and DIN22252-1/2