Photo credits · เครดิตภาพ

TPI product photos belong to TPI Polene Public Company Limited (tpipolene.co.th). We use them as a TPI dealer.

The photos below come from Wikimedia Commons. They have been cropped and resized. Photos under a CC BY-SA license are shared under the same license.

	Item and source	Author	License
	Fill sand Bournemouth, sand pile at Boscombe - geograph.org.uk - 4330387.jpg	Jonathan Hutchins	CC BY-SA 2.0
	Coarse sand WaimeaSand.JPG	Katyrine88	Public domain
	Fine sand Heap of Fine Construction Sand.jpg	Paul The Writer	CC0
	Crushed stone 20mm-aggregate.jpg	Billbeee at English Wikipedia	CC BY 3.0
	Ready-mix concrete Mercedes-Benz Axor based cement mixer truck.JPG	High Contrast	CC BY 3.0 de
	Red clay brick India - Sights & Culture - Rural Brick Making Kiln 02 (4040024973).jpg	McKay Savage from London, UK	CC BY 2.0
	Lightweight AAC block Ytong.jpg	de:User:Ytong	CC BY-SA 3.0
	Concrete block Concrete masonry units.jpg	USACE Afghanistan Engineer District-South	CC BY-SA 2.0
	Round bar Steel reinforcement rods.jpg	Markus Koljonen (Dilaudid)	CC BY-SA 3.0
	Deformed bar A bunch of rebar.jpg	W.carter	CC BY-SA 4.0
	Structural steel Steel beams stacked beside a building in a construction yard.jpg	Shixart1985	CC BY 2.0
	Plywood sheet Spruce plywood.JPG	Bystander	CC BY-SA 3.0
	Concrete nails Double-headed nail.agr.jpg	ArnoldReinhold	CC BY-SA 4.0