PCVF plastic male female pneumatic fits 1.standard:Metric,Inch,NPT 2. ... size:04~16mm 3.thread size: M5~1/2" PCVF plastic male female pneumatic fits Features :A.convenient one touch fittings ... :production process including raw material cutting , machine processing for brass ,plastic cap and rubber seal injection ,assemble ,thread painting ,testing ,package .testing ...