INSTALLATION of barbecue chimney CHIMNEY KIT with little money

INSTALLATION of barbecue chimney CHIMNEY KIT with little money
Special kit for converting a 30x30 pre-molded barbecue with the following parts:
1 Chinese hat 100mm
2 ducts of 60cm with 100mm
1 adapter 30x30 with 100mm output
• The pieces have an exact 100mm on one side and a 3mm discount on the other side to fit the other modules (bend, duct, hat, register, etc.)
• Locking frieze at all ends, so that the piece passes through 5 cm of fitting and also for sealing.
• Matte black painting with special heat-resistant paint.
• Galvanized zinc material for better resistance
• Mounting pattern: the smaller part goes inside the larger part from bottom to top, so that water does not enter and smoke does not come out through the seams.