K4-A

Seat & Backrest shell Polyethylene or Polyamide
Backrest frame Rounded Steel Pipe(Ø25x2mmT)
Seat frame Rounded Steel Pipe(Ø22x2mmT)
Horizontal bar Steel Pipe(50x50x2.3mmT)
Bracket Steel Plate (3mmT)
Horizontal bar Steel Pipe(50x50x2.3mmT)
Material of Leg Steel Pipe(50x50x2.3mmT)
or Die Casting Aluminum
Fixing Floor fixing(-A)
Tip-up mechanism Counter Balanced weight mechanism

K4-B

Seat & Backrest shell : Polyethylene or Polyamide
Backrest frame Rounded Steel Pipe(Ø25x2mmT)
Seat frame : Rounded Steel Pipe(Ø22x2mmT)
Bracket : Steel PlateQmmT)
Fixing : Riser fixing (-B)

Tip-up mechanism :

Counter Balanced weight mechanism

Finish of Aluminum and steel parts:

Powder Coating or Hot Dip Galvanizing Coating
Option : Armrest

KA2 Series

Seat & Backrest shell : High Impact Resistant Polypropylene.
Support & Armrest Die Casting Aluminum
Bracket: Die Casting Aluminum
Horizontal bar: Steel Pipe(50x50x2.3mmT)
Tip-up mechanism : Counter Balanced Weight Mechanism (non spring mechanism
Material of Leg : Steel Pipe(50x50x2.3mmT) or Die Casting Aluminum
Fixing :
Floor Fixing(-A), Riser Fixing(-B) and Loose Type(-C)
Finish of Aluminum and steel parts : Powder Coating or Hot Dip Galvanizing Coating
Option : Insert (Fabrics + 12mmT polyurethan foam + Polypropylene)
Fully upholstery (Fabrics + 12mmT polyurethane foam)
P.P. Armrest cover / Cup-holder