How to Handle Unqualified Carbon Fiber Tubes--gardening Bracket support

Carbon fiber tube is light weight,High strength ,high cost products. It can be customized by clients.  Nearly no client's request is same--- It means when we produce a batch of carbon fiber tube for someone A,Most time it only suit for A.  Other clients can't use it. Clients will curious-- If some carbon fiber tubes are Unqualified. What will your company do?  Our reply is one-- It will be treated as waste. Because carbon fiber tube is not similar like plastic. If unqualified,Plastic can be melt again then become new products. For carbon fiber tubes, We only need to abandon the unqualified ones instead deliver them to our clients. Even it is unqualifed products,It performace for example light weight,High strength,wearing resistant,corrosion resistant etc is never changed. So many of our workers or their families or friends will use the abandon carbon fiber tubes become -gardening Bracket/ support. the carbon fibe tube become gardening bracket,can used long time.