4Pcs 3030 Series Aluminum Profile Straight Line Connector,Inner Straight Carbon Steel Zinc Plating Bracket Fastener with M6 Screw ,for 6mm T-Slot Aluminum Extrusion Profile (3030-Black-4PCS). Material：Made From High Quality Carbon Steel, These Aluminum Extrusion Profile Connector Parts Have High Hardness and A Long Service Life.
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