Polystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic hydrocarbon polymer made fr ...
Shree Bharath Packing-9361177111 2018-10-09T07:04:41 2018-10-09T07:04:41
Shree Bharath Packing-9361177111 
Polystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic hydrocarbon polymer made from the monomer 
