我公司有经验代理博世力士乐（BOSCH-REXROTH）、阿托斯ATOS、派克Parker、迪普马DUPLOMATIC、油研YUKEN;本特利bentley、贝加莱B&R、西门子、光洋KOYO，美国ASCO，美国PARKER派克 等系列进口产品
所以使用比例阀或伺服阀的目的就是：以电控方式实现对流量的节流控制（当然经过结构上的改动也可实现压力控制等），既然是节流控制，就必然有能量损失，伺服阀和其它阀不同的是，它的能量损失更大一些，因为它需要一定的流量来维持前置级控制油路的工作。
0811404683 4WRLE10V85M-3X/G24ETK0/A1M-810
0811404681 4WRLE10V85M-3X/G24ETK0/F1M
0811404680 4WRLE10Q3-85M-3X/G24ETK0/A1M
0811404678 4WRLE10V55M-3X/G24ETK0/A1M-810
0811404677 4WRLE10X85M-3X/G24K0/A1M-0811
0811404673 4WRLE10V1-85M-3X/G24ETK0/A1M
0811404672 4WRLE10V1-85M-3X/G24K0/A1M
0811404670 4WRLE10Q4-85M-3X/G24ETK0/A1M
0811404668 4WRLE10Q4-85M-3X/G24TK0/A1M
0811404665 4WRLE10Q5-85M-3X/G24ETK0/A1M
0811404664 4WRLE10V85M-3X/G24K0/B5M
0811404663 4WRLE10V55M-3X/G24K0/B5M
0811404662 4WRLE10V85M-3X/G24ETK0/A1M
0811404661 4WRLE10V55M-3X/G24ETK0/A1M
0811404660 4WRLE10V85M-3X/G24TK0/A1M
0811404659 4WRLE10V55M-3X/G24TK0/A1M
0811404657 4WRLE10V55M-3X/G24ETK0/A1V
0811404656 4WRLE10X85M-3X/G24ETK0/A1M-812
0811404653 4WRLE10V85M-3X/G24K0/A1M
0811404652 4WRLE10V55M-3X/G24K0/A1M
0811404648 4WRPEH6C5B40P-2X/G24K0/A1M
0811404647 4WRPEH6C4B40P-2X/G24K0/A1M
0811404646 4WRPEH6C4B25P-2X/G24K0/A1M
0811404645 4WRPEH6C4B15P-2X/G24K0/A1M
0811404644 4WRPEH6C3B40P-2X/G24K0/A1M
0811404643 4WRPEH6C3B25P-2X/G24K0/A1M
0811404642 4WRPEH6C3B15P-2X/G24K0/A1M
0811404641 4WRPEH6C4B02L-2X/G24K0/A1M
0811404640 4WRPEH6CB40L-2X/G24K0/F1M
0811404638 4WRPEH6C4B40L-2X/G24K0/A1V
0811404637 4WRPEH6C3B40P-2X/G24K0/B5M
0811404635 4WRPEH6C3B25P-2X/G24K0/B5M
0811404632 4WRPEH6C3B12L-2X/G24K0/F1M
0811404631 4WRPEH6C3B04L-2X/G24K0/F1M
0811404628 4WRPEH6K3B50P-2X/G24K0/A1M
0811404627 4WRPEH6C3B04P-2X/G24K0/A1M-561
0811404626 4WRPEH6C3B15P-2X/G24K0/B5M
0811404623 4WRPEH6C4B12L-2X/G24K0/B5M
0811404622 4WRPEH6C3B24L-2X/G24K0/B5M
0811404621 4WRPEH6C3B04L-2X/G24K0/B5M
0811404620 4WRPEH6XB24L-2X/G24K0/A1M-743
0811404618 4WRPE6KB70M-2X/G24K0/B5M
0811404613 4WRPEH6C4B40L-2X/G24K0/A1M
0811404612 4WRPEH6C4B24L-2X/G24K0/A1M
0811404611 4WRPEH6C4B12L-2X/G24K0/A1M
0811404610 4WRPEH6C4B04L-2X/G24K0/A1M
0811404605 4WRPEH6C3B04P-2X/G24K0/A1M
0811404603 4WRPEH6C3B40L-2X/G24K0/A1M
0811404602 4WRPEH6C3B24L-2X/G24K0/A1M
0811404601 4WRPEH6C3B12L-2X/G24K0/A1M
0811404600 4WRPEH6C3B04L-2X/G24K0/A1M
0811404588 4WRLE35R5-1100SJ-3X/G24EK0/A1M-868
0811404587 4WRLE35Q5-1000M-3X/G24EK0/A1WG02M
0811404585 4WRLE35X1000M-3X/G24K0/A1M-848
0811404583 4WRLE35V1000M-3X/G24K0/A1M-834
0811404580 4WRLE35Q3-1000M-3X/G24TK0/A1M
0811404579 4WRLE35V1000M-3X/G24K0/A1M
0811404578 4WRLE35X500M-3X/G24EK0/A1M-812
0811404577 4WRLE35X1000M-3X/G24K0/A1M-812
0811404576 4WRLE35X1000M-3X/G24EK0/A1M-812
0811404575 4WRLE35X500M-3X/G24K0/A1M-812
0811404574 4WRLE27V1-430M-3X/G24K0/F1M
0811404573 4WRLE25V370M-3X/G24K0/F1M
0811404572 4WRLE27Q3-550P-3X/G24K0/A1M
0811404571 4WRLE27Q5-430M-3X/G24EK0/A1WG02M
0811404570 4WRLE25V370M-3X/G24EK0/F1M
0811404568 4WRLE25X370M-3X/G24TK0/A1M-0811
0811404567 4WRLE27Q3-430M-3X/G24K0/A1WG02M
0811404566 4WRLE25Q3-370M-3X/G24K0/A1WG02M
0811404560 4WRL35V1000M-3X/G24Z4/M-923
0811404559 4WRPEH10C4B50P-2X/G24K0/F1M
0811404558 4WRPE10Q5-80M-2X/G24K0/B5M
0811404556 4WRPE10Q5-80M-2X/G24K0/B5M-832
0811404555 4WRPE10Q4B50L-2X/G24K0/A1M
0811404554 4WRPE10R5-80P-2X/G24K0/A1M-839
0811404553 4WRPE10R5-80P-2X/G24K0/A1M-838
0811404552 4WRPE10V80M-2X/G24K0/A1M-837
0811404551 4WRPE10Q5-50M-2X/G24K0/A1M-836
0811404538 4WRPEH6C3B40L-2X/G24K0/A1V
0811404537 4WRPEH6C4B02L-2X/G24K0/F1M
0811404532 4WRPE6Q4-32M-2X/G24K0/A1M
0811404527 4WRPEH6CB12L-2X/G24K0/A1M
0811404526 4WRPEH6C3B02L-2X/G24K0/F1M
0811404525 4WRPEH6C1B24L-2X/G24K0/F1M
0811404520 4WRPH6C3B24L-2X/G24K0/M-784
0811404515 4WRPH6C4B02L-2X/G24Z4/M
0811404508 4WRLE35R5-1100SJ-3X/G24EK0/A1WX02M-745
0811404506 4WRL35W2-1100S-3X/G24Z4/M
0811404505 4WRLE35W3-1100SJ-3X/G24EK0/A1WX02M-745
0811404504 4WRLE35W1100SJ-3X/G24K0/A1M
0811404503 4WRLE35W5-600SJ-3X/G24EK0/A1WX02M-745
0811404502 4WRLE35W1100SJ-3X/G24EK0/A1WX02M-744
0811404501 4WRL35W1100S-3X/G24Z4/WX02M-767
0811404500 4WRL35E1100S-3X/G24Z4/M
0811404498 4WRLE25V370M-3X/G24ETK0/A1M
0811404496 4WRL25V300P-3X/G24Z4/M
0811404494 4WRLE35W1100SJ-3X/G24K0/A1M-732
0811404493 4WRLE27W430SJ-3X/G24K0/A1M-732
0811404492 4WRLE25W4Z350SJ-3X/G24K0/A1M-732
0811404489 4WRL25EZ000S-3X/G24Z4/M-867
0811404488 4WRLE25WZ350SJ-3X/G24K0/A1V
0811404485 4WRLE27E4-430SJ-3X/G24K0/A1M
0811404481 4WRLE25EZ350SJ-3X/G24ETK0/A1M
0811404480 4WRLE25WZ350SJ-3X/G24K0/A1M-759
0811404479 4WRLE27W3-430SJ-3X/G24EK0/A1WX02M-745
0811404478 4WRLE27E430SJ-3X/G24K0/A1M
0811404477 4WRLE27X430SJ-3X/G24EK0/A1WX02M-782
0811404474 4WRLE25W350SJ-3X/G24EK0/A1WX02M-745
0811404473 4WRLE25W350SJ-3X/G24EK0/A1WX02M-756
0811404472 4WRLE25W4Z350SJ-3X/G24K0/A1M
0811404471 4WRLE25W4Z350SJ-3X/G24ETK0/A1M
0811404470 4WRLE25W3-350SJ-3X/G24EK0/A1WX02M-756
0811404467 4WRLE25W3-350SJ-3X/G24EK0/A1WX02M-745
0811404466 4WRLE25EZ350SJ-3X/G24TK0/A1M
0811404462 4WRLE27W430SJ-3X/G24K0/A1M-758
0811404461 4WRLE25WZ350SJ-3X/G24K0/A1M-758
0811404459 4WRLE25E4-350SJ-3X/G24K0/A1M
0811404458 4WRLE27W430SJ-3X/G24K0/A1M
0811404457 4WRLE25W1Z350SJ-3X/G24K0/A1M
0811404456 4WRLE25WZ350SJ-3X/G24K0/A1M
0811404455 4WRLE25E1Z350SJ-3X/G24K0/A1M
0811404454 4WRLE25EZ350SJ-3X/G24K0/A1M
0811404453 4WRLE25WZ350SJ-3X/G24ETK0/A1WX02M-749
0811404452 4WRLE25WZ350SJ-3X/G24EK0/A1M-561
0811404448 4WRVE25V250M-2X/G24K0/B5M
0811404446 4WRVE27V430M-2X/G24K0/B5M
0811404445 4WRVE25V370M-2X/G24K0/B5M
0811404444 4WRLE25V1-370M-3X/G24K0/A1M
0811404443 4WRLE27W4-430SJ-3X/G24ETK0/A1WX02M-745
0811404442 4WRLE27Q4-430M-3X/G24TK0/A1M
0811404441 4WRLE27Q4-430M-3X/G24K0/A1M
0811404440 4WRLE27W1-430M-3X/G24EK0/A1M-769
0811404439 4WRLE25W1-370M-3X/G24EK0/A1M-769
0811404438 4WRLE27Q4-430M-3X/G24ETK0/A1M
0811404437 4WRLE25X370M-3X/G24K0/A1M-812
0811404436 4WRLE27X430M-3X/G24K0/A1M-812
0811404435 4WRLE25X370M-3X/G24EK0/A1M-812
0811404434 4WRLE25X370M-3X/G24ETK0/A1M-812
0811404433 4WRLE25X370M-3X/G24K0/A1M-0811
0811404432 4WRLE27V430M-3X/G24K0/A1M
0811404431 4WRLE25Q5-370M-3X/G24K0/A1M
0811404430 4WRLE25V370M-3X/G24K0/A1M
0811404429 4WRLEM25EZ350SJ-3X/G24K0/A1M
0811404428 4WRL25V370M-3X/G24K0/M-750
0811404427 4WRL25E1-350S-3X/G24Z4/M-755
0811404425 4WRL25EZ350S-3X/G24ETZ4/M-750
0811404423 4WRL25V1-370M-3X/G24K0/M-750
0811404422 4WRL25EZ350S-3X/G24Z4/M-763
0811404421 4WRL25W4-350S-3X/G24Z4/M
0811404420 4WRL25E4-350S-3X/G24Z4/M
0811404417 WEGEVENTIL
0811404416 4WRL25W3-350S-3X/G24Z4/WX02M-799
0811404412 4WRL25V270M-3X/G24Z4/M-783
0811404410 4WRL25W350S-3X/G24Z4/WX02M-753
0811404409 4WRL25W1Z350S-3X/G24Z4/M
0811404408 4WRL25E1Z350S-3X/G24Z4/M
0811404407 4WRL25EZ350S-3X/G24Z4/M
0811404406 4WRL25WZ350S-3X/G24Z4/M
0811404405 4WRL25V370M-3X/G24Z4/M
0811404398 4WRVE10V1-85M-2X/G24K0/B5M-869
0811404397 4WRLE10V1-85M-3X/G24EK0/A1M
0811404394 4WRL10V1-85M-3X/G24Z4/M
0811404393 4WRL10V85M-3X/G24TZ4/M
0811404392 4WRL10V55M-3X/G24ETZ4/M
0811404391 4WRL10V55M-3X/G24TZ4/M
0811404390 4WRL10V85M-3X/G24ETZ4/M
0811404383 4WRPE6W08SJ-2X/G24K0/F1M
0811404381 4WRPE6E32SJ-2X/G24K0/F1M
0811404370 4WRLE16W5-180S-3X/G24K0/A1M-732
0811404368 4WRPEH6C3B12P-2X/G24K0/A1M-854
0811404366 4WRPEH6CB08P-2X/G24K0/A1M
0811404363 4WRPEH6CB25P-2X/G24K0/A1M-303
0811404362 4WRPE6Q5-32M-2X/G24K0/B5M-832
0811404361 4WRPE6X32M-2X/G24K0/B5M-833
0811404359 4WRPEH6CB25P-2X/G24K0/A1M
0811404357 4WRPEH6C3B04L-2X/G24K0/A1V
0811404355 4WRPEH6CB24L-2X/G24K0/A1M
0811404354 4WRPEH6C1B40L-2X/G24K0/F1M
0811404353 4WRPEH6C4B40L-2X/G24K0/F1M
0811404352 4WRPEH6C4B24L-2X/G24K0/F1M
0811404351 4WRPEH6C4B12L-2X/G24K0/F1M
0811404350 4WRPEH6C4B04L-2X/G24K0/F1M
0811404347 4WRVE16V1-120M-2X/G24K0/B5M-869
0811404346 4WRLE16V200M-3X/G24K0/A1M-857
0811404345 4WRVE16V1-200M-2X/G24K0/B5M-869
0811404344 4WRLE16Q3-200M-3X/G24K0/A1WG02M
0811404342 4WRLE16Q3-200M-3X/G24K0/A1M
0811404337 4WRLE16WZ180SJ-3X/G24EK0/A1M
0811404332 4WRLE16W4Z180SJ-3X/G24ETK0/A1WG02M
0811404331 4WRLE16EZ180SJ-3X/G24EK0/A1M
0811404329 4WRLE16WA180SJ-3X/G24K0/A1M
0811404328 4WRLE16W4Z180SJ-3X/G24ETK0/A1M
0811404327 4WRLE16W1Z180SJ-3X/G24ETK0/A1M
0811404326 4WRLE16W180SJ-3X/G24EK0/A1WX02M-745
0811404325 4WRLE16WA110SJ-3X/G24K0/A1M
0811404324 4WRLE16WZ180SJ-3X/G24K0/A1M-772
0811404322 4WRLE16WZ180SJ-3X/G24EK0/A1M-758
0811404321 4WRLE16W1-180SJ-3X/G24EK0/A1WX02M-756
0811404320 4WRLE16W5-180SJ-3X/G24K0/A1M
0811404319 4WRLE16EZ180SJ-3X/G24ETK0/A1M
0811404318 4WRLE16EZ180SJ-3X/G24TK0/A1M
0811404317 4WRLE16W2-180SJ-3X/G24K0/A1M
0811404316 4WRL16WZ180S-3X/G24EZ4/WX02M-756
0811404315 4WRLE16W1-180SJ-3X/G24EK0/A1WX02M-744
0811404312 4WRLE16E1-180SJ-3X/G24K0/A1M-762
0811404311 4WRLE16E180SJ-3X/G24K0/A1M-762
0811404308 4WRLE16W1Z180SJ-3X/G24K0/A1M
0811404307 4WRLE16WZ180SJ-3X/G24K0/A1M
0811404306 4WRLE16E1Z180SJ-3X/G24K0/A1M
0811404305 4WRLE16EZ180SJ-3X/G24K0/A1M
0811404304 4WRLE16WZ180SJ-3X/G24ETK0/A1WX02M-749
0811404303 4WRLE16WZ180SJ-3X/G24EK0/A1M-561
0811404302 4WRLE16W180SJ-3X/G24K0/A1WX02M-752
0811404300 4WRLE16W180SJ-3X/G24EK0/A1M
0811404295 4WRVE16V1-200M-2X/G24K0/B5M
0811404294 4WRVE16V1-120M-2X/G24K0/B5M
0811404291 4WRVE16V200M-2X/G24K0/B5M
0811404290 4WRVE16V120M-2X/G24K0/B5M
0811404288 4WRLE16V200M-3X/G24ETK0/A1M-857
0811404287 4WRLE16V200M-3X/G24K0/A1M-834
0811404286 4WRLE16Q5-200M-3X/G24K0/A1M-853
0811404285 4WRLE16V120M-3X/G24ETK0/A1M-857
0811404282 4WRLE16V1-200M-3X/G24ETK0/A1M
0811404281 4WRLE16V1-120M-3X/G24ETK0/A1M
0811404280 4WRLE16V1-200M-3X/G24K0/A1M
0811404279 4WRLE16V1-120M-3X/G24K0/A1M
0811404276 4WRLE16Q4-200M-3X/G24K0/A1M
0811404275 4WRLE16Q4-200M-3X/G24TK0/A1M
0811404274 4WRLE16Q5-200M-3X/G24ETK0/B5M-774
0811404273 4WRLE16W1-200M-3X/G24EK0/A1WX02M-779
0811404272 4WRLE16V200M-3X/G24K0/F1M
0811404271 4WRLE16V120M-3X/G24K0/B5M
0811404270 4WRLE16Q4-200M-3X/G24ETK0/A1M
0811404269 4WRLE16V200M-3X/G24K0/B5M
0811404266 4WRLE16V1-150P-3X/G24K0/A1M
0811404265 4WRLE16V1-90P-3X/G24K0/A1M
0811404264 4WRLE16V150P-3X/G24K0/A1M
0811404263 4WRLE16V90P-3X/G24K0/A1M
0811404261 4WRLE16X200M-3X/G24K0/A1M-812
0811404260 4WRLE16X00M-3X/G24K0/A1M-778
0811404259 4WRLE16X200M-3X/G24EK0/A1M-812
0811404258 4WRLE16X200M-3X/G24ETK0/A1M-812
0811404257 4WRLE16Q5-85M-3X/G24K0/A1M-775
0811404256 4WRLE16X200M-3X/G24K0/A1M-0811
0811404254 4WRLE16Q5-200M-3X/G24TK0/B5M-774
0811404252 4WRLE16Q5-200M-3X/G24K0/A1M
0811404251 4WRLE16V200M-3X/G24K0/A1M
0811404250 4WRLE16V120M-3X/G24K0/A1M
0811404247 4WRL16WZ180S-3X/G24ETZ4/M
0811404241 4WRL16V100P-3X/G24Z4/M
0811404239 4WRL16V1-120M-3X/G24Z4/M
0811404237 4WRL16V1-200M-3X/G24K0/M-750
0811404236 4WRL16V1-120M-3X/G24K0/M-750
0811404234 4WRL16EZ180S-3X/G24Z4/M-763
0811404233 4WRL16EZ180S-3X/G24ETZ4/M-750
0811404232 4WRL16EZ180S-3X/G24Z4/M-750
0811404229 4WRL16V120M-3X/G24K0/M-750
0811404228 4WRL16E1-180S-3X/G24Z4/M-755
0811404223 4WRL16WZ180S-3X/G24EZ4/WX02M-753
0811404221 4WRL16V200M-3X/G24TZ4/M-765
0811404220 4WRL16Q5-200M-3X/G24TZ4/M-774
0811404219 4WRL16W3-180S-3X/G24Z4/WX02M-924
0811404218 4WRL16W180S-3X/G24ETZ4/WX02M-748
0811404216 4WRL16E1-110S-3X/G24Z4/M
0811404215 4WRL16E110S-3X/G24Z4/M
0811404214 4WRL16E4-180S-3X/G24Z4/M
0811404213 4WRL16W1Z180S-3X/G24Z4/M
0811404212 4WRL16E1Z180S-3X/G24Z4/M
0811404211 4WRL16W4Z180S-3X/G24Z4/M
0811404210 4WRL16EZ180S-3X/G24Z4/M
0811404209 4WRL16WZ180S-3X/G24Z4/M
0811404207 4WRL16V200M-3X/G24Z4/M
0811404206 4WRL16V120M-3X/G24Z4/M
0811404193 4WRL10W1-80S-3X/G24TZ4/M
0811404192 4WRL10E80S-3X/G24ETK0/M-750
0811404191 4WRL10E80S-3X/G24K0/M-750
0811404190 4WRL10E1-80S-3X/G24TZ4/M
0811404189 4WRL10E80S-3X/G24TZ4/M
0811404188 4WRL10W80S-3X/G24ETZ4/M
0811404187 4WRL10W4-80S-3X/G24Z4/M
0811404186 4WRL10E4-80S-3X/G24Z4/M
0811404185 4WRL10W1-80S-3X/G24ETZ4/M
0811404184 4WRL10W1-80S-3X/G24Z4/M
0811404183 4WRL10W80S-3X/G24Z4/M
0811404182 4WRL10E1-80S-3X/G24ETZ4/M
0811404181 4WRL10E1-80S-3X/G24Z4/M
0811404180 4WRL10E80S-3X/G24Z4/M
0811404179 4WRPH6C3B12L-2X/G24K0/M-784
0811404177 4WRPH6XB12L-2X/G24K0/M-843
0811404175 4WRPH6XB40L-2X/G24Z4/M-842
0811404174 4WRPH6C3B40L-2X/G24Z4/M-561
0811404172 4WRPH6CB25P-2X/G24Z4/M
0811404171 4WRPH6C4B40L-2X/G24K0/M-750
0811404170 4WRPH6C3B40L-2X/G24K0/M-750
0811404169 4WRPH6C3B24L-2X/G24K0/M-750
0811404167 4WRPH6C4B24L-2X/G24K0/M-750
0811404166 4WRPH6XB12L-2X/G24Z4/M-842
0811404164 4WRPH6C3B24L-2X/G24Z4/M-561
0811404163 4WRPH6XB24L-2X/G24Z4/M-842
0811404162 4WRPH6C1B40P-2X/G24Z4/M
0811404161 4WRPH6C3B12L-2X/G24Z4/M-561
0811404160 4WRPH6C4B04L-2X/G24Z4/M
0811404155 4WRBAE6W2-32J-2X/G24N9K31/A1M
0811404154 4WRBAE6E18J-2X/G24N9K31/F1M
0811404153 4WRBAE6W18J-2X/G24N9K31/A1M
0811404151 4WRBAE6E18J-2X/G24N9K31/A1M
0811404150 4WRBAE6E32J-2X/G24N9K31/A1M
0811404149 4WRPE6W2C32SJ-2X/G24K0/A1M-836
0811404148 4WRPE6E08SJ-2X/G24K0/A1M
0811404147 4WRPE6W32SJ-2X/G24K0/F1M
0811404146 4WRPE6W18SJ-2X/G24K0/F1M
0811404145 4WRPE6W08SJ-2X/G24K0/A1M
0811404144 4WRPE6W32SJ-2X/G24K0/B5M
0811404143 4WRPE6W32SJ-2X/G24K0/A1M
0811404142 4WRPE6W18SJ-2X/G24K0/A1M
0811404141 4WRPE6E32SJ-2X/G24K0/A1M
0811404140 4WRPE6E18SJ-2X/G24K0/A1M
0811404132 4WRPH6C3B04L-1X/G24Z4/V
0811404130 4WRPH6CB40L-2X/G24Z4/M-859
0811404129 4WRPH6CB40L-2X/G24Z4/M-855
0811404128 4WRPH6CB24L-2X/G24Z4/M-855
0811404126 4WRP6W06S-1X/G24Z4/M
0811404125 4WRBA6W07-2X/G24N9Z4/M
0811404124 4WRBA6W15-2X/G24N9Z4/M-897
0811404123 4WRBA6E07-2X/G24N9Z4/M
0811404122 4WRPH6C3B04L-1X/G24Z4/M
0811404121 4WRP6W28S-1X/G24Z4/M
0811404120 4WRP6W14S-1X/G24Z4/M