psibarkpa分别啥意思,诱人的意思是啥

0-15psi 0-1bar/kpa*100 pressure gauge 1/4 npt back mou
性格色彩学-fpa教程
50mm 0~200psi 0~14bar pool filter water pressure dial hydrau
2,pcs,就是pieces的缩写形式.
0~200 psi 0~14 bar 1/8 npt pressure gauge fuel air compres