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Graphite copper sleeve, 40mm, Outer Diameter 50mm, Bearing Straight Cylindrical Sliding Guide Bushings Sleeve(40x50x15mm)
Made of high-strength brass (CuZn24A16) material, it has strong wear , strong bearing capacity. High-purity graphite filling, more stable solid lubricant, graphite oil content exceeds 60%, can work efficiently in oil-free environment,...
https://www.bizrate.co.uk/homehardware/graphite-copper-sleeve-40mm-outer-oid40418912448.html