size: 7-14pcs/kg, 8-12pcs/kg, 6-8pcs/kg, 100-200g, 200-300g, 300-400g, 400-500g,500g up
packing: 10kg/ctn or 15kg/ctn or 15kg/poly sack
quality:
grade A: seafrozen, 100%nw or 95%nw, as buyer require
grade B: landfrozen, 95%nw, use to make canned products