... hour of driving to either PVG or HONGQIAO airport. Rotational molding has advantages in less tooling investment, small quantity, one ... , float, chair, playground toy, scrubber tank, military case, bumper, tractor roof, engine pallet, and so on. Size of our large ... Looking forward to hearing from you, thanks! Roto mold, for rotomolded filter tank, by rotomolding LLDPE. 11 years in roto molding&tooling.