产品

书不可不成通。—— 宋?朱熹《宋名臣言行录》
R900404770 4WMM6Y5X/F力士乐手动换向阀
博世力士乐 液压阀 方向阀 换向滑阀 Bosch Rexroth 换向阀 手动换向阀
R900404770 4WMM6Y5X/F R900404770 4WMM6Y5X/F力士乐直动式方向滑阀
R900404770 4WMM6Y5X/F R900404770 4WMM6Y5X/F力士乐直动式方向滑阀
Bosch Rexroth Industrial Hydraulics
博世力士乐工业液压
On/off valves
开/关阀
Directional valves
方向阀
Directional spool valves, Direct operated
方向滑阀，直动式
Directional spool valves, direct operated, with mechanical or manual actuation
带机械或手动起动的直动式方向滑阀
Type WMR, WMRZ, WMU, WMM and WMD(A)
- Size 6
- Component series 5X; 6X
- Maximum operating pressure 315 [4569 psi]
- Maximum flow 60 l/min [15.8 US gpm]
Features
- 4/3, 4/2 or 3/2 directional design
- Porting pattern according to DIN 24340 form A (without locating hole)
- Porting pattern according to ISO 4401-03-02-0-05 and 
  NFPA T3.5.1 R2-2002 D03 (with locating hole)
- Types of actuation:
  ?Roller plunger
  ?Hand lever
  ?Rotary knob
- Inductive position switches and proximity sensors (contactless)
力士乐换向滑阀
4WMM 6 Y5X/F
- 材料号：R900404770
- 有用接口数：4 = 4 个可用接口
- 产品类型：WMM = 换向阀，手柄
- 通径：6 = 通径 6，Qmax = 约 60 L/min，Pmax = 315 bar
  接口图按 DIN24 340 A 型，ISO 4401 和 CETOP-RP 121 H
- 阀芯：Y = Y 阀芯
- 系列：5X = 系列 50 至 59，安装和连接尺寸不变
- 弹簧复位：F = 带定位机构
- 插入式节流阀：无插入式节流阀
- 密封：丁睛橡胶密封适用于矿物油(HL,HLP)，按 DIN 51524，
  HETG（菜籽油），生物快速降解油液，按 VDMA 24568
博世力士乐 液压阀 方向阀 换向滑阀 Bosch Rexroth 换向阀 手动换向阀
R900404770 4WMM6Y5X/F R900404770 4WMM6Y5X/F力士乐直动式方向滑阀
R900404770 4WMM6Y5X/F R900404770 4WMM6Y5X/F力士乐直动式方向滑阀
供应商信息：上海心雨机电设备有限公司
Attn：闫菲18717727482
Email：395717253@qq.com
Tel：021-60510250
Fax：021-55032832
Q扣扣Q：395717253
人读书不至千遍，终于已无益。—— 《元史?侯均传》
R900404770 4WMM6Y5X/F力士乐手动换向阀
博世力士乐 液压阀 方向阀 方向滑阀 Bosch Rexroth 换向滑阀 手动换向阀 手动阀 阀门
Bosch Rexroth Industrial Hydraulics
博世力士乐工业液压
On/off valves
开/关阀
Directional valves
方向阀
Directional spool valves, Direct operated
方向滑阀，直动式
Directional spool valves, direct operated, with mechanical or manual actuation
带机械或手动起动的直动式方向滑阀
型号 WMR，WMRZ，WMU，WMM 和 WMD（A）
- 通径 6
- 组件系列 5X；6X
- 最大工作压力 315 bar [4569 psi]
- 最大流量 60 l/min [15.8 US gpm]
特点
- 具有三位四通，二位四通或二位三通的方向设计
- 油口安装面符合 DIN 24340 结构形式 A 的规定（不带定位孔）
- 油口安装面符合 ISO 4401-03-02-0-05 和 NFPA T3.5.1 R2-2002 D03 的规定（带定位孔）
- 起动类型：
  ?滚轮柱塞
  ?手柄
  ?旋钮
- 位置感应开关和接近传感器（无触点）

Bosch Rexroth Hydraulic Valves
博世力士乐液压阀
Directional spool valves, Direct operated
直动式方向滑阀
型号 WMR，WMRZ，WMU，WMM 和 WMD（A）
订货代码
"**6**/***/*****"
"*"--3 = 3 个主油口
  4 = 4 个主油口
"*"--起动类型：
  WMR = 滚轮柱塞（请参阅第 12 页）
  WMRZ = 滚轮柱塞（请参阅第 12 页）
  WMU = 滚轮柱塞（请参阅第 12 页）
  WMM = 手柄
  WMD = 旋钮
  WMDA = 可锁定旋钮
"6"--6通径
"*"--符号，例如 C，E，EA，EB 等；有关可选用的型号，请参阅第 4 页和第 5 页
"*"--5X = 组件系列 50 至 59（50 至 59：安装和连接尺寸不变）
  6X = 组件系列 60 至 69（60 至 69：安装和连接尺寸不变）（仅限型号 "WMRZ"）
"*"--无代码 = 带弹簧复位（型号 "WMR"，"WMRZ"，"WMU"，"WMM"）
  F = 带棘爪止动器不带弹簧复位（型号 "WMM"，"WMD"，"WMDA"）
"*"--防腐蚀：
  无代码 = 标准的防腐蚀
  J = 改进型防腐蚀
"*"--阀芯位置监控：
  无代码 = 不带位置开关
  QM 类型感应位置开关
  QMAG24 = 监控的阀芯位置 "a" 
  QMBG24 = 监控的阀芯位置 "b" 
  QM0G24 = 监控的中间位置
  有关更多信息，请参见样本 24830
"*"--无代码 = 不带节流插件
  B08 = 节流 ? 0.8 mm [0.0315 英寸]
  B10 = 节流 ? 1.0 mm [0.0394 英寸]
  B12 = 节流 ? 1.2 mm [0.0472 英寸]
"*"--夹持长度：
  无代码 = 42 mm [1.65 英寸]（标准）
  Z = 22 mm [0.87 英寸]（仅用于型号 "WMRZ"）
"*"--密封材料：
  无代码 = NBR密封件
  V = FKM密封件
  注意：请务必遵守密封件与所用液压油的兼容性！（可应要求提供其它密封件）
"*"--无代码 = 不带定位孔
  /60 = 带定位孔
  /62 = 带符合 ISO 8752-3x8-St 的定位孔和定位销
"*"--明文形式的更多详细信息

Bosch Rexroth
博世力士乐液压阀
直动式方向滑阀 手动阀
型号列举
R900472754 3WMM6A5X/F
R901236051 3WMM6A5X/F/B10
R900937920 3WMM6A5X/F/B10V
R900500752 3WMM6A5X/F/B12
R900479099 3WMM6A5X/F/V
R901250799 3WMM6A5X/FJ
R901475395 3WMM6A5X/FJ3
R900505752 3WMM6A5X/FQAG24
R900702795 3WMM6A5X/FQMAG24
R901339723 3WMM6A5X/FQMBG24/B08
R900490248 3WMM6B5X/F
R900771389 3WMM6B5X/F/B12
R900513943 3WMM6B5X/F/V
R900712116 3WMM6B5X/FQMBG24
R901291448 3WMM6B5X/FXC
R900472158 4WMM6C5X/F
R900339423 4WMM6C5X/F/B08
R900356033 4WMM6C5X/F/B10
R900443660 4WMM6C5X/F/B12
R900478764 4WMM6C5X/F/V
R901382906 4WMM6C5X/FJ
R901475271 4WMM6C5X/FJ3
R901425067 4WMM6C5X/FQMAG24
R900469301 4WMM6D5X/F
R900342116 4WMM6D5X/F/B08
R901038314 4WMM6D5X/F/B08V
R900406650 4WMM6D5X/F/B10
R900911448 4WMM6D5X/F/B10V
R900408046 4WMM6D5X/F/B12
R900409450 4WMM6D5X/F/V
R901270854 4WMM6D5X/FJ
R901270853 4WMM6D5X/FJ/B10
R901475390 4WMM6D5X/FJ3
R900917926 4WMM6D5X/FQMAG24
R901041825 4WMM6D5X/FQMAG24/B08
R900969098 4WMM6D5X/FQMAG24/V
R900926820 4WMM6D5X/FQMBG24
R900405611 4WMM6E5X/F
R900468746 4WMM6E5X/F/B08
R901139080 4WMM6E5X/F/B08V
R900413222 4WMM6E5X/F/B10
R900488218 4WMM6E5X/F/B12
R900389059 4WMM6E5X/F/B12V
R900413615 4WMM6E5X/F/V
R901248160 4WMM6E5X/FJ
R900495891 4WMM6EA5X/F
R900535090 4WMM6EA5X/F/B12
R900376114 4WMM6EA5X/F/V
R901330796 4WMM6EA5X/FQM0G24
R900920230 4WMM6EA5X/FQMAG24
R900403196 4WMM6EB5X/F
R900394069 4WMM6EB5X/F/V
R901240771 4WMM6EB5X/FJ
R900404664 4WMM6F5X/F
R978869019 4WMM6F5X/F/V
R900442840 4WMM6FA5X/F
R900499012 4WMM6FA5X/F/B12
R900469533 4WMM6G5X/F
R900353273 4WMM6G5X/F/B08
R900565334 4WMM6G5X/F/B10
R900436150 4WMM6G5X/F/B12
R900508054 4WMM6G5X/F/B20
R900488009 4WMM6G5X/F/V
R900470084 4WMM6GA5X/F
R900738756 4WMM6GA5X/F/B10
R901342580 4WMM6GA5X/F/B10V
R900524857 4WMM6GA5X/F/T06
R900940108 4WMM6GA5X/F/V
R900361875 4WMM6GB5X/F
R900472755 4WMM6H5X/F
R900453436 4WMM6H5X/F/B08
R901129198 4WMM6H5X/F/B12
R900520659 4WMM6H5X/F/B20
R900463544 4WMM6H5X/F/T06
R900414871 4WMM6H5X/F/V
R901401635 4WMM6H5X/FJ
R900474830 4WMM6HA5X/F
R900549662 4WMM6HA5X/F/B10
R900498362 4WMM6HB5X/F
R900383139 4WMM6HB5X/F/V
R900466583 4WMM6J5X/F
R900371998 4WMM6J5X/F/B08
R900920465 4WMM6J5X/F/B08V
R900363911 4WMM6J5X/F/B10
R901030312 4WMM6J5X/F/B10V
R900371450 4WMM6J5X/F/B12
R900729020 4WMM6J5X/F/B12V
R900411264 4WMM6J5X/F/B15
R900463738 4WMM6J5X/F/B20
R900391074 4WMM6J5X/F/T06
R900402409 4WMM6J5X/F/V
R901272493 4WMM6J5X/F/ZV
R901250224 4WMM6J5X/FJ
R900494250 4WMM6JA5X/F
R901246375 4WMM6JA5X/F/B10V
R900962342 4WMM6JA5X/F/B12
R900548479 4WMM6JA5X/F/V
R900492869 4WMM6JB5X/F
R901147292 4WMM6JB5X/F/B08V
R900496826 4WMM6JB5X/F/B10
R901371028 4WMM6JB5X/F/B12
R900725424 4WMM6JB5X/F/V
R901179346 4WMM6JB5X/FQMBG24/V
R900339780 4WMM6L5X/F
R900483869 4WMM6LA5X/F
R901263395 4WMM6LA5X/F/V
R900486542 4WMM6LB5X/F
R900328256 4WMM6LB5X/F/V
R901094259 4WMM6LB5X/FQMBG24/B12
R900409630 4WMM6M5X/F
R900969026 4WMM6M5X/F/B10
R901459744 4WMM6M5X/F/B10V
R900726594 4WMM6M5X/F/T06
R978851421 4WMM6M5X/F/V
R901250793 4WMM6M5X/FJ
R900503338 4WMM6MA5X/F
R901327925 4WMM6MB5X/F
R901240055 4WMM6MB5X/F/B08
R901240056 4WMM6MB5X/F/B10
R900474566 4WMM6P5X/F
R978027900 4WMM6P5X/F
R900348998 4WMM6PA5X/F
R900403020 4WMM6Q5X/F
R901347777 4WMM6QB5X/F/V
R900474383 4WMM6R5X/F
R901053430 4WMM6R5X/F/V
R900409158 4WMM6RB5X/F
R901187037 4WMM6RB5X/F/T06
R900477795 4WMM6T5X/F
R900397530 4WMM6T5X/F/B08V
R900566995 4WMM6T5X/F/B12
R978848035 4WMM6T5X/F/V
R900485792 4WMM6TA5X/F
R900425617 4WMM6TA5X/F/B08
R900378794 4WMM6U5X/F
R900348110 4WMM6UA5X/F
R900458495 4WMM6V5X/F
R900474567 4WMM6W5X/F
R900341274 4WMM6W5X/F/B08
R900334061 4WMM6W5X/F/B10
R900347953 4WMM6W5X/F/V
R900404770 4WMM6Y5X/F
R900513388 4WMM6Y5X/F/B08
R900384933 4WMM6Y5X/F/B10
R900431010 4WMM6Y5X/F/B12
R900343782 4WMM6Y5X/F/V
R901297432 4WMM6Y5X/F/ZV
R901313197 4WMM6Y5X/FJ
R901330729 4WMM6Y5X/FQMAG24
……
每读一书，必至百遍。—— 清?郑燮《板桥自序》
R900404770 4WMM6Y5X/F力士乐手动换向阀
博世力士乐 液压阀 方向阀 方向滑阀 Bosch Rexroth 换向滑阀 手动换向阀 手动阀 阀门
Bosch Rexroth Industrial Hydraulics
博世力士乐工业液压
On/off valves
开/关阀
Directional valves
方向阀
Directional spool valves, Direct operated
方向滑阀，直动式
Directional spool valves, directly operated, with manual and fluid logics actuation
带手动和流体逻辑起动的直动式方向滑阀
型号 WMM，WN 和 WP
型号列举
R900593250 3WMM10A3X/
R900595634 3WMM10A3X/F
R900913096 3WMM10A3X/F/V
R900534386 3WMM10B3X/
R900596323 3WMM10B3X/F
R900597811 4WMM10C3X/
R900589912 4WMM10C3X/F
R900595687 4WMM10C3X/F/V
R900591592 4WMM10D3X/
R900587838 4WMM10D3X/F
R900965436 4WMM10D3X/F/B08
R900507731 4WMM10D3X/F/B10
R900511262 4WMM10D3X/F/B10V
R900598883 4WMM10D3X/F/B12
R900592847 4WMM10D3X/F/V
R900589983 4WMM10E3X/
R900589975 4WMM10E3X/F
R900516402 4WMM10E3X/F/B08
R901023124 4WMM10E3X/F/B10
R900595530 4WMM10E3X/F/B12
R900592400 4WMM10E3X/F/V
R900513702 4WMM10EA3X/F
R900549272 4WMM10EA3X/F/B08V
R901012739 4WMM10EA3X/F/V
R900598324 4WMM10EB3X/
R900501486 4WMM10EB3X/F
R901012810 4WMM10EB3X/F/B12
R901163571 4WMM10EB3X/F/V
R900508503 4WMM10F3X/
R900590584 4WMM10F3X/F
R900590222 4WMM10G3X/
R900592485 4WMM10G3X/F
R988002561 4WMM10G3X/F
R900591828 4WMM10G3X/F/B10
R900904033 4WMM10G3X/F/B12
R900562798 4WMM10G3X/F/V
R900701525 4WMM10GA3X/
R900593260 4WMM10GA3X/F
R900548899 4WMM10GA3X/F/V
R900515308 4WMM10GB3X/
R900962426 4WMM10GB3X/F
R900592220 4WMM10H3X/
R900589913 4WMM10H3X/F
R988002562 4WMM10H3X/F
R900592846 4WMM10H3X/F/V
R900944417 4WMM10HA3X/
R900504376 4WMM10HA3X/F
R900586919 4WMM10J3X/
R900945203 4WMM10J3X/B08
R900589954 4WMM10J3X/F
R901325322 4WMM10J3X/F/B08
R900249173 4WMM10J3X/F/B08V
R900551154 4WMM10J3X/F/B10
R900568536 4WMM10J3X/F/B12
R900594409 4WMM10J3X/F/V
R900528555 4WMM10JA3X/
R900526101 4WMM10JA3X/F
R901354833 4WMM10JA3X/F/V
R900515151 4WMM10JB3X/
R900591042 4WMM10JB3X/F
R901110931 4WMM10JB3X/F/B12
R900564162 4WMM10JB3X/F/V
R900593827 4WMM10L3X/
R900593806 4WMM10L3X/F
R901284299 4WMM10LA3X/
R900558722 4WMM10LB3X/
R900782992 4WMM10LB3X/F
R900589953 4WMM10M3X/
R900593288 4WMM10M3X/F
R900592539 4WMM10MA3X/
R901270848 4WMM10MA3X/F
R901160483 4WMM10MA3X/F/V
R900557758 4WMM10MB3X/F
R900594837 4WMM10P3X/
R900534388 4WMM10P3X/F
R900594911 4WMM10Q3X/
R900594912 4WMM10Q3X/F
R900528823 4WMM10Q3X/F/B08
R900971232 4WMM10Q3X/F/B10V
R978006888 4WMM10Q3X/V
R900599617 4WMM10R3X/
R900599652 4WMM10R3X/F
R901180642 4WMM10R3X/F/V
R900917933 4WMM10RB3X/
R900902858 4WMM10RB3X/F
R900589910 4WMM10T3X/
R900589911 4WMM10T3X/F
R900532052 4WMM10T3X/F/B08
R901037207 4WMM10T3X/F/B08V
R900737888 4WMM10T3X/F/B12
R978861968 4WMM10T3X/F/V
R900501682 4WMM10U3X/
R900928731 4WMM10U3X/F
R900785104 4WMM10U3X/F/V
R900570536 4WMM10V3X/
R900500836 4WMM10W3X/
R900776420 4WMM10W3X/B10
R900535270 4WMM10W3X/F
R900589994 4WMM10Y3X/
R900593835 4WMM10Y3X/F
R900511534 4WMM10Y3X/F/B12
R900597264 4WMM10Y3X/F/V

力士乐直动式方向滑阀
R901362284 3WMM10A5X/F/M
R901410666 3WMM10A5X/F/V
R901442315 3WMM10A5X/J5/M
R901422970 3WMM10B5X/F/M
R901430446 3WMM10B5X/F/V
R901362287 4WMM10C5X/F/M
R901418361 4WMM10C5X/F/V
R901434151 4WMM10C5X/J5/M
R901408284 4WMM10D5X/F/B08M
R901350272 4WMM10D5X/F/M
R901362289 4WMM10D5X/F/V
R901397209 4WMM10D5X/J5/M
R901408339 4WMM10E5X/F/B12M
R901350266 4WMM10E5X/F/M
R901362292 4WMM10E5X/F/V
R901404263 4WMM10E5X/J5/M
R901430400 4WMM10EB5X/F/M
R901350268 4WMM10G5X/F/M
R901362299 4WMM10G5X/F/V
R901445099 4WMM10G5X/J5/M
R901362418 4WMM10GA5X/F/M
R901155474 4WMM10GB5X/F/B08V
R901362300 4WMM10GB5X/F/M
R901362405 4WMM10H5X/F/M
R901427121 4WMM10H5X/FJ5/M
R901432578 4WMM10J5X/F/B12M
R901350264 4WMM10J5X/F/M
R901362408 4WMM10J5X/F/V
R901397208 4WMM10J5X/FJ5/M
R901410278 4WMM10J5X/J5/M
R901158859 4WMM10J5X/J5/V
R901434152 4WMM10Q5X/F/B10V
R901439137 4WMM10Q5X/F/M
R901362410 4WMM10R5X/F/M
R901422527 4WMM10RB5X/F/M
R901362412 4WMM10T5X/F/M
R901429265 4WMM10T5X/J5/M
R901407702 4WMM10U5X/F/B12M
R901237179 4WMM10U5X/F/M
R901376694 4WMM10Y5X/F/M

力士乐直动式换向滑阀
R901346384 4WN10D5X//M
R901442596 4WN10D5X//V
R901430601 4WN10D5X/O/M
R901362421 4WN10D5X/OF/M
R901426392 4WN10D5X/OF/M/12
R901347062 4WN10E5X//M
R901412066 4WN10E5X//V
R901426394 4WN10E5X//V/12
R901439919 4WN10EA5X//M
R901347063 4WN10G5X//M
R901400837 4WN10H5X//M
R901347061 4WN10J5X//M
R901426396 4WN10J5X//M/12
……
读书以熟为贵，作文亦然。—— 清?梁章钜《退庵论文》
Bosch Rexroth Industrial Hydraulics
博世力士乐工业液压
On/off valves
开/关阀
Directional valves
方向阀
Directional spool valves, Direct operated
方向滑阀，直动式
Directional spool valves, directly operated, with manual and fluid logics actuation
带手动和流体逻辑起动的直动式方向滑阀
型号 WMM，WN 和 WP
型号列举
R900402727 3WP6A5X/
R900351830 3WP6A5X//V
R900403874 3WP6A5X/N
R900493388 3WP6A5X/O
R900373712 3WP6A5X/OF
R900409881 3WP6B5X/
R900412241 3WP6B5X/N
R900476965 4WP6C5X/
R900599413 4WP6C5X//V
R900409778 4WP6C5X/N
R900521894 4WP6C5X/N/B10
R900494483 4WP6C5X/O
R900520342 4WP6C5X/O/B12
R900402068 4WP6C5X/O/V
R900587087 4WP6C5X/OF
R900370614 4WP6C5X/OFN
R900475894 4WP6C5X/ON
R900937552 4WP6C5X/ON/B12
R900478926 4WP6D5X/
R900912186 4WP6D5X//B08
R900331126 4WP6D5X//B10
R900978014 4WP6D5X//B12
R900547965 4WP6D5X//R12
R900334486 4WP6D5X//T06
R900478410 4WP6D5X//V
R900478967 4WP6D5X/N
R900397621 4WP6D5X/N/V
R900474606 4WP6D5X/O
R900343185 4WP6D5X/OF
R900956512 4WP6D5X/OF/B10
R900440242 4WP6D5X/OF/V
R900352024 4WP6D5X/OFN
R900940893 4WP6D5X/OFN/B08V
R900402345 4WP6D5X/ON
R900448316 4WP6D5X/ON/V
R900490043 4WP6E5X/
R900400321 4WP6E5X/N
R900427430 4WP6EA5X/
R900409330 4WP6EA5X/N
R900935348 4WP6EA5X/N/V
R900419208 4WP6EB5X/
R900425751 4WP6EB5X/N/B12
R900553860 4WP6FB5X//V
R900478602 4WP6G5X/
R900478923 4WP6G5X/N
R900339526 4WP6G5X/N/V
R900417933 4WP6GA5X/
R900485880 4WP6GA5X/N
R900401012 4WP6H5X/
R900478922 4WP6H5X/N
R900490179 4WP6HA5X/
R900494226 4WP6HA5X/N
R900419207 4WP6HB5X/
R900478924 4WP6J5X/
R900337976 4WP6J5X//B08
R900359008 4WP6J5X//B10
R900712014 4WP6J5X//B10
R900406644 4WP6J5X//V
R900477543 4WP6J5X/N
R900351221 4WP6J5X/N/B08
R900498663 4WP6J5X/N/V
R900478925 4WP6JA5X/
R900362532 4WP6JA5X/N
R900338319 4WP6JB5X/
R900330980 4WP6JB5X//V
R900430536 4WP6JB5X/N
R900577073 4WP6L5X/N
R900493389 4WP6M5X/N
R900567689 4WP6M5X/N/V
R900523067 4WP6Q5X/
R900595820 4WP6Q5X/N
R900537749 4WP6Q5X/N/V
R900413276 4WP6T5X/
R900413459 4WP6T5X/N
R900522572 4WP6W5X/N
R900962029 4WP6W5X/N/V
R900490251 4WP6Y5X/
R900475574 4WP6Y5X/N

力士乐直动式方向滑阀
R901362422 3WP10A5X//M
R901428572 3WP10B5X//M
R901428998 4WP10C5X//B08M
R901435575 4WP10C5X//M
R901362430 4WP10C5X/OF/M
R901347064 4WP10D5X//M
R901426381 4WP10D5X//M/12
R901424308 4WP10D5X//V
R901428795 4WP10D5X/O/M
R901447967 4WP10D5X/O/V
R901362423 4WP10D5X/OF/M
R901421506 4WP10D5X/OF/V
R901347066 4WP10E5X//M
R901443379 4WP10E5X//V
R901426382 4WP10E5X//V/12
R901431637 4WP10EA5X//M
R901441475 4WP10EB5X//M
R901347067 4WP10G5X//M
R901362424 4WP10GA5X//M
R901362425 4WP10H5X//M
R901426383 4WP10H5X//M/12
R901445574 4WP10H5X//M=PL
R901425749 4WP10H5X//V
R901347065 4WP10J5X//M
R901426385 4WP10J5X//M/12
R901426389 4WP10J5X//V/12
R901362427 4WP10Y5X//M
R901426387 4WP10Y5X//M/12
……
非读书不能作文，非熟读不能作文。—— 明?朱之瑜《答东安约问》