The test pallets contained various materials including aluminum cans, asphalt shingles, concrete shingles, crushed plastic bottles, roofing paper rolls, copy paper, plastic and steel bumpers, wood disks, toilets, and tire stacks.
(The test pallets; contained; various materials including aluminum cans, asphalt shingles, concrete shingles, crushed plastic bottles, roofing paper rolls, copy paper, plastic and steel bumpers, wood disks, toilets, and tire stacks)
The test pallets
contained
various materials including aluminum cans, asphalt shingles, concrete shingles, crushed plastic bottles, roofing paper rolls, copy paper, plastic and steel bumpers, wood disks, toilets, and tire stacks