From multiple listings by Air'O'Tech Enterprises in Mumbai, here's a detailed breakdown:
Specifications:
Board Type: Rigid PCB.
Base Material: Aluminum for durability and heat dissipation.
Board Thickness: 1.6mm.
Voltage Endurance: 235V.
Flame Resistance: Normal level.
Surface Finish: Lead-free (environmentally safer).
Warranty: Included.
Specs:
Same rigid aluminum build.
Slightly thicker board at 2mm.
Warranty included.
Specs:
Voltage Endurance: 240V.
Rigid aluminum board with 2mm thickness.
Lead-free surface, normal flame resistance, warranty included.
Specs:
Aluminum rigid board.
240V endurance.
Flame resistance (normal), lead-free finish, warranty

Price:
Price 25000 INR / Number
Minimum Order Quantity : 1 Number
Usage & Applications : Industrial
Features : Good Quality
Color : Green
Warranty : 1 Year
Price 8000 INR / Number
Minimum Order Quantity : 1 Number
Usage & Applications : Industrial
Features : Good Quality
Warranty : 1 year
Price 40000 INR / Number
Minimum Order Quantity : 1 Number
Usage & Applications : Industrial
Features : Good Quality
Color : Green
Warranty : 1 Year
Price 20000 INR / Number
Minimum Order Quantity : 1 Number
Usage & Applications : Industrial
Features : Good Quality
Color : Green
Warranty : 1 Year