PR10M..S1PN9，PR10M10S1PN9，PR10M35S1PN9，PR10M25S1PN9，PR10M17S1PN9，PARKER型先导减压阀 PR25M..S1PN9，PR25M10S1PN9，PR25M35S1PN9，PR25M25S1PN9，PR25M17S1PN9 PR32M..S1PN9，PR32M10S1PN9，PR32M35S1PN9，PR32M25S1PN9，PR32M17S1PN9 液压元件，高真空充气阀， 电磁真空带充气阀，真空蝶阀， 电磁换向阀，多管式冷却器，