1.2.1 study the process of producing sponge fibers from water hyacinth 1.2.2. Compare the performance degradation of the natural fiber sponge with a sponge on the market.
1.2.1 study process in the production of sponge, natural fibers from water hyacinth 1.2.2. Compare the performance degradation of the natural fiber with sponge sponge in the market .