PP Compression Fittings:1)Standard:German DIN 8077/8078. 2)Colors:Black,gray,green,Blue.3)Dimensions:16 - 160m.4)customers' logo are accepted. 5.Material:Random Polypropylene,Environmental copper or stainless steel. 6.Pressure Rating:PN10,PN16. 7.Standard:GB/T18742.2-2002,GB/T18742.3-2002,GB/T13663-2000,GB/T5836.1-2006,DIN8077,DIN8078.