Penerangan
Fibreglass flanges nozzles can be fabricate accordingly to asme standard, ANSI 150, JIS10k.
Frp flanges and fibreglass damper can be custom made and add as an air control valve to manipulate wind control.
Other than that, fibreglass flexible duct is for connection between blower or centrifugal fan to frp stack or fibreglass chimney
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