Difference of Islam and traditional banks

Cash credit vs. BAIM (hypo)
C.C (hypothecation): bank lend the money to the client under hypothecation where the bank will have the title of the goods and client will enjoy the possession of the same goods.
BAIM (hypo): bank will buy goods and then sell it to the client. Bank also can engage an agent for to buy the goods or can engage the client as an agent of bank. In this case, bank will have the title of the goods and client will enjoy the possession of the same according to the rules of hypothecation.