... and brass nut.The material is usually used of brass type HPb58-3 or HPb59-1, but customers’ requirements are ... forging, shot blasting, fine finishing, assemblying, testing and packing.Brass compression fittings include thress series — Straights, Elbows and Tees. They can ... to the color of fittings. One type is natural brass color, no surface treatment. Another type is silvery white color, which is ...