... to meet the big volume order. Steel and brass hose coupling for custom-made service. All sizes of barb hose coupling are available ... a monthly capacity of 3,000,000 units, to machine your volume orders. Our dedication, plus the company's ... : CNC lathe, automatic lathe, hand lathe grinder, threadrolling machine, tapping drilling machine etc;3) Advanced measuring & testing equipment: Projecting apparatus, ...