Name	Material Description		Quality guarantee	Warranty
Gas lift	SHS Grade 4		Normal operation	3 year
Base	Aluminum Polishing / Nylon/Chrome		No deforming/ No rust	3 year
Castor	PU/PP		Stable	3 year
Mechanism	Steel/ Aluminium		Stable,Normal operation	3 year
Sponge	One-time forming molded foam		High elastic,Durable,comfortable	3 year
Mesh	WINTEX elastic mesh and high density mesh		No deforming,no fade,no pilling	3 year
Fabric	High elastic wear resistant fabric		No fade,no pilling	3 year
Frame	Strengthened nylon material		Stable	3 year
Armrest	Mutilfunctional armrest with Strengthened PP or PU pads		Stable	3 year
Metal frame	Thick iron pipe		Stable,No rust	3 year
Fixed Accessories	Iron moulding-die packaging		Not missing equipment, No rust	3 year