Question: what are the different packaging materials for fish products?
Answer: Hard Plastics. are not flexible or elastic which are used for retail packaging in the production of trays and form-fill packs of fishery products.
Polystyrene. ... 
expanded polystyrene. ... 
polyvinyl chloride (PVC) ... 
Films. ... 
Polyethylene PE. ... 
Polypropylene PP. ... 
Polyamide PA.