SQL361B570西门子蝶阀执行器570 Nm 0-10 V, 4-20 mA ¥3333.00 SQL361B270西门子蝶阀执行器270 Nm 0-10 V, 4-20 mA ¥3333.00 SQL361B150西门子蝶阀执行器150 Nm 0-10 V, 4-20 mA ¥3333.00 SQL361B25西门子蝶阀执行器25Nm 0-10 V, 4-20 mA ¥3333.00 VVF63.150-315 电动二通铸钢PN40 DN150 ¥18888.00 VVG44.15-0.25/0.4/0.63/1.6/2.5西门子电动两通调节阀DN15 ¥1444.00