... 25*25mm, 30*30mm, 40*40mm, 50*50mm, 60*60mm. 4.Material: Mild steel, cast steel, cast iron, forged steel, stainless ... , gear shaper, hobbing machine, grinder. Detailed Product Descriptionsteel gear rack Material : C45,40Cr,S.S 304,etc specs:10*10mm ... length:1000mm Moudle:2-25 steel gear rack Steel gear rack specs: 10*10*1000mmMaterialC45Typespurteeth finishcutprecisionup 5Product usage gate ...