... We use durable ceramic cartridge for all our faucet.No leakage after 500,000 timesopen&close ... Ni 4-8um,cr: 0.25um) 3,faucet corrosion test:NSS/ASS 24hours/48hours,corrosion status ... GB18145-2003 and international standards. 4,function of faucet:mixer cold water and hot water.Complete with Hot ... & Cold water Hoses&Attachment Set&Accessories. 5,faucet Installation:three-hole and two-handle design. Pull ...