... -dip galvanizing, paint, anodize, powder coating, brush, Polish5.Metal Process: CNC turning, machining, milling, drilling, planning, grinding, welding6. Thread standard: ANSI / BS ... order accepted.Tube OD: 04, 06, 08, 10, 12, 14, 16, 18, 22, 24 mm 1/8, 1/4, 3/8 ...