TY  - RPRT
TI  - Screw-thread standards for federal services 1957. Part II: pipe threads, including dryseal pipe threads; gas cylinder valve outlet and inlet threads; hose coupling, including fire-hose coupling threads; and hose connections for welding and cutting equipment 
PY  - 1959
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 28supp1957pt2
DO  - 10.6028/NBS.HB.28supp1957pt2
ER  -