... thread with G or NPT threads 3:Brass surface 1. high quality raw bar brass material, DZR, H57-32. Go and No ... -Go checked thread with G or NPT threads3. brass surface or chrom-plated 4. Size 1/4"*8mm, 1/4"*10mm, 3 ... CE:7: Main market :Russia , England ,Germany , USA, Thailand , Dubai brass fitting,mold standard component