... .*Good after-sales services.2.Technical specifications: Product namePrecision cnc parts / cnc partCapabilitiesCNC center machining, Milling, drilling, turning, grinding ... steel17-4PH,302,303,304,321,416,440Aluminum2011,2024,6061,6262,7075Copper110,145,147,314,316,360,544, ... ,TeflonOtherBronze,Brass,Hardened metal,Precious metal CNC aluminum cylinder with inner threaded lathe parts in dongguan china