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EWD-204

No.	Particulars	Drawbacks
1	Wooden door frame	Not water proof, termite, maintenance
2	Aluminum door frame	Not stable, poof screw holding, maintenance
3	Iron door frame	Screws, rusting, low life fixing problem
4	Hollow PVC door frame	Un stable for heavy doors, low screw holding
5	UPVC door frame	High cost, unstable
6	Cemented door frame	Fixing problem, brittle, heavy not water proof

No.	Characteristics	WPC	WOOD
1	Moisture resistance	100% waterproof	Water absorptive
2	Rot resistance	Antisepsis	Rot except special treating
3	Split resistance	No cracked	Cracked by weathering effect
4	Distortion resistance	Almost no contraction or expansion	Distorting effected by change of moisture and temperature
5	UV resistance	High grade UV resistance	Easily effected by UV
6	Fading resistance	Almost no	Easy to fade
7	Outdoor resistance	Great	Only few of treated wood adaptive
8	No need resistance	No need	Need paint periodically
9	Durable / longevity	> 8-15 years	<3 years
10	Various configuration	Extruded via various mold	Simplex
11	Environment effect	100% recyclable	Consume woods

No.	Parameter	Value	Advantage
1	Density	0.8-1g/cm³	Little deformation, strong anti-aging
2	Flexibility	20-30MPa	Low brittleness, not easily broken
3	CTE	2~5*10-5/'c	Non-deformation
4	Moisture absorption	0.3~3%/24h	Not easy to mold, not wrap
5	Termite-proof	Mass decrement :0.4 % yr., dead bugs rate:20% yr	Not easy to mold, not wrap
6	Combustibility	25~26(B)	High flame retardancy
7	Colorfastness	3-4 Levels/yr. AE (2-3)	Not easy oxidation fade