... are welcome Refrireation and Plumbing Insulated Copper Tube Specifications:1) Classification: PE coated copper tube, PVC and NBR coated copper ... tube2) Norminal Diameter: 15, 16, 19, 22, 28, 35, 42, 54mm3) According to Europe EN1057 and ... forms)Properties of the Copper pipeline:1) Healthy and non-toxic, bacteriological neutral, conforming to drinking waterstandards2 ...