Northman台湾北部精机,两通常闭式锥阀SV10-20S-N-0-DG,SV10-20S-N-0-DL,SV10-20S-V-12-DR,SV10-20S-V-12-AG,SV10-20S-V-12-AP,SV10-20M-N-115-DG,SV10-20M-N-115-DL,SV10-20M-N-115-DR,SV10-20M-V-230-AG,SV10-20M-V-230-AP