1.1.5inch;2inch;3inch;4inch;6;8;10;inch;2.PN1.0~1.6MPa,3.&:0.2mm;0.25mm;0.3mm;0.4mm,0.5mm; 4.single rube and sleewe type;5.sleeve type fitter pipe.5.free constrction plan and technical;4.