we offer all kinds of brass cartridge. size 1/2", 3/4', 3/8" Brass cartridgeWeight: 35g--70gSize: 3/8" , 1/2" , 3/4"Ceramic Material: 96% AluminaPressure Resistance: 30barAir Pressure test(100%): 800kpaLife test: ASME 112.18.1 500,000cyclesCeramic Hardness: 1100HVSMax Temperature: 90 CMax Turning Angle: 90DTorque: 8-12 Nm (Normal 10 Nm)All of our ceramic cartridge have to pass strict inspection ...