... 1.material:steel 2.Surface treatment Carburizing, hardening and tempering, nitriding, heavy duty truck synchronizer hub Detailed Product Description ISO/TS ... 2009Package1, Brand Packing (from inside to outside): oiled paper, boxes, cartons, (and wooden pallets)2, Customized packingSmall orders accepted. Larger ... Ankai(AK), JAC, Zonda, Daewoo, Neoplan, Kaisiboaer, etc. heavy duty truck synchronizer hub