This is SUS 304 stainless steel cold water basin water tap faucet,  it's good quality rust resistance stainless steel, because of cold water tap, so it's suitable on some tropical area, also the price is a little cheap compared to hot cold basin tap.
It's cold water single lever universal tube kitchen faucet, the inside pipe is stainless steel flexible hose, and covered by silicon rubber, there is many colors optional, like noraml red, blue, grey, black etc. The installation is very easy and replace.