aluminum car metal muffler 1.Material: 6061,6063 2.Diamater: 40,45,50,54,74mm 3.Usage: Car air-conditioning system aluminum car metal muffler Material: 6061,6063,6082 Diamater available: 40,45,50,54,74mmStyle: As per customer's designUsage: Car air-conditioning systemFeatures: Eco-friendly , recyclableDelivery time: 25-30 days