C is hammer automatic restore structure which is characterized by small area, saving energy, convenient adjustment and dependabledischarge dust and air lock.
C为吊锤自动复位机构，具有占地面积省、节能，卸灰调节方便，卸灰、锁气可靠之功能。
2
D is CAM wheel pole driving, spring automatic restore structure, tight structure, reasonable design, stable driving, dust discharge and dependable air lock.