Metal diaphragm Metal diaphragm 153 after the brake 153 before the brake Xiang bridge before the brake Xiang Bridge after the brakes American-style Pumping rubber Miscellaneous pieces of rubber Referral units under seal Self-rotating plastic core High Pressure Piston Im from gas-child Ventilation-air birth Disc push airbag Light self-adhesive core Air bag capsule Clutch bag Cementing plug Cementing plug Piston rod