弹簧调压范围 A:25psi(1.7bar)to3000psi(210bar),preset预设定:1000psi(70bar)
B:25psi(1.7bar)to1500psi(105bar),preset预设定:1000psi(70bar)
C:25psi(1.7bar)to6000psi(420bar),preset预设定:1000psi(70bar)
D:25psi(1.7bar)to800psi(55bar),preset预设定:400psi(28bar)
E:25psi(1.7bar)to400psi(28bar),preset预设定:200psi(14bar)
W:25psi(1.7bar)to4500psi(315bar),preset预设定:1000psi(70bar)
