1. material :Q345B,din standard. 2. serious tooth requirements 3. accurate holes positions. 4. crack test 1.material42crmo4,q345,carbon steel2.process5 axes cnc3.quality controlFC dimensions 0 defects4.strengthsspecial process,high precicsion,small order quantity,competitive price5.characterseasy asseble,broad-suitable6.usageplanetary gear bracket,machinery parts,equipment parts,gas oil parts