YA brand YA brand ISO9809-3 CE TPED oxygen cylinder is made by 37Mn or 34CrMo4 seamless steel pipe ,consistent height, smoothly painting, and excellent properties, which is widely used for industrial filed, welding filed or medical and hospital field. The
A single jet water meter is a member of the family of velocity water meters. single jet water meter has the advantages of simple and reliable design, small size, light weight and relatively low manufacturing cost.