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American National Pipe

mech. 美制标准管
national pipe
earth.sc. 〔美国〕标准管〔螺纹〕
 English thesaurus
National Pipe
therm.eng., abbr. NP
National Pipe
: 55 phrases in 10 subjects
Automobiles5
Aviation14
Drilling1
Earth sciences2
General10
Mechanic engineering1
Mechanics15
Oil / petroleum1
Sealing3
Technology3