tuhin4u (Unstopable Lover + Mariana World DIAMOND member): Mass transfer *
20-08-12 - 22:13:19

tuhin4u (Unstopable Lover + Mariana World DIAMOND member): Crude oil. *
20-08-12 - 22:17:51

mona786 (Unstopable Lover): Why crude oil *
20-08-12 - 23:04:33

tuhin4u (Unstopable Lover + Mariana World DIAMOND member): Coz crude oil related to petroleum and petrochemical engineering. *
06-12-13 - 11:06:43