Cheap cht nozzles are fully made out of brass and the insert is

10pcs 3D Printer Nozzle for 1.75mm Filament V6 Clone

10pcs 3D Printer Nozzle for 1.75mm Filament V6 Clone-CHT Tip

Bondtech CHT High Flow Nozzle Reviewed — CNC Kitchen

3D Solex PrintCore EVERLAST Ruby Sapphire CHT Nozzle - 0.25mm

Features: brand new and high quality. This is designed according to the nozzle CHT-clone to provide twice the flow rate than the ordinary v6 nozzle

10pcs 3D Printer Nozzle for 1.75mm Filament V6 Clone-CHT Tip Nozzles Brass Copper Print Head 0.4mm High Flow (0.4mm)

BROZZL Brass Nozzle for Elegoo Neptune 4 Pro - 3DJake International

Bondtech CHT® Coated Brass Nozzle – Fabreeko

Bondtech CHT BiMetal M6 Coated Nozzle - 0.40mm

Bondtech CHT High Flow Nozzle Reviewed — CNC Kitchen

For high flow applications. Price: $21.64. 4 diameters. 35 Customer Reviews.

CHT MK8 Coated Nozzle 0.4 mm

Bondtech CHT Coated Brass Nozzles