Model 502B: Brass Hinge
* Pins have 2 types: F (Fixed Pin) / L (Loose Pin).
* Tips have 4 types: Flat / Crown / Steeple and ball.
* Washers have 3 types: Plain Joint / 2 or 4 Ball Bearings.
* Screw holes have 2 types: Template / Zigzag.
* Zigzag have 3 types: Right / Left / Symmetrical.
* Finishes have: PB (Polished Brass) / SB (Stain Brass) / BC (Bright Chrome) / BC (Bright Gold) /
AB (Antique Bronze / AC (Antique Copper).
* Size: 3” X 2” to 6” X 3”.
*Thick: 2.0mm to 4.0mm.

Model 502SS: Stainless Steel Hinge
* Pins have 2 types: F (Fixed Pin) / L (Loose Pin).
* Washers have 5 types: Plain Joint / Nylon Ring / SS Ring /
                    2 or 4 Ball Bearings.
* Screw holes have 2 types: Template / Zigzag.
* Zigzag have 3 types: Right / Left / Symmetrical.
* Finishes have: SSS (Stain S/S) / PSS (Polished S/S).
* Size: 3” X 2” to 5” X 4”.
* Thick: 2.0mm to 3.5mm.
Model 502S: Steel Hinge
* Finishes have: B (Black painting) / AC (Antique Copper).
* Size: 3” X 3” to 4” X 4”, Thick: 2.0mm to 3.0mm.