... the high-quality screw Products pictures : We specialized in producing all kinds of high precision CNC lathe parts according to ... ) Main production equipment: CNC turning and milling machine, automatic lathe machine, thread rolling machine, drilling machine, tapping machine, etc ... of stainless steel, (303,304, 316 Etc) Brass ( C3602, C3604, lead-free, Etc) , aluminum( 6061,6063 Etc.) , steel, etc. 4 ...