亚洲视频福利,日本精品一区二区三区在线,日韩欧美在线视频一区二区,国产高清自产拍av在线,99久久99久久精品国产片果冻,国产视频手机在线,成人禁在线观看午夜亚洲

RTD15CN 日本東日扭力起子|東日RTD15CN扭力起子|東日扭力起子山東總代理

 RTD15CN 日本東日扭力起子|東日RTD15CN扭力起子|東日扭力起子山東總代理RTD15CN 日本東日扭力起子|東日RTD15CN扭力起子|東日扭力起子山東總代理RTD15CN 日本東日扭力起子|東日RTD15CN扭力起子|東日扭力起子山東總代理RTD15CN 日本東日扭力起子|東日RTD15CN扭力起子|東日扭力起子山東總代理RTD15CN 日本東日扭力起子|東日RTD15CN扭力起子|東日扭力起子山東總代理
產(chǎn)品介紹：
型號(hào)測(cè)量范圍全長重量參考(公制)
最小~最大刻度舊型號(hào)扭力調(diào)整范圍
cN.mcN.mmmkg最小~最大
　　　　　　kgf.cm
RTD15CN2~150.1100501.5RTD0.2~1.5
RTD30CN4~300.2100503RTD0.4~3
RTD60CN10~600.5105806RTD1~6
RTD120CN20~120112012512RTD2~12
RTD260CN60~260214022526RTD6~26
RTD500CN100~5002.515033050RTD10~50
產(chǎn)品備注：
注1:RTD500CN用輔助緊固工具另購
注2:只有RTD15CN-260CN有鎖止機(jī)構(gòu)
注3:批頭須另購
附件:只有260CN,500CN型有扳手附件
濟(jì)南沐子商貿(mào)公司長期致力于工業(yè)測(cè)量、電工電子儀器儀表、五金工具等專業(yè)配套產(chǎn)品銷售及售后服務(wù)。 客戶包括汽車零部件制造、航空航天、科研實(shí)驗(yàn)、電子電工、五金機(jī)械加工等商業(yè)領(lǐng)域，我司一直秉承為客戶提供專業(yè)精準(zhǔn)的計(jì)量儀器為企業(yè)任務(wù)，同時(shí)配備良好的技術(shù)支持和售后服務(wù)。公司設(shè)立于山東省濟(jì)南市 ,以服務(wù)山東及全國客戶伙伴為宗旨,沐子人以用心做實(shí)事，服務(wù)至上為原則，服務(wù)于我們的客戶。公司產(chǎn)品齊全庫存充足；供貨周期短、絕對(duì)價(jià)格優(yōu)勢(shì)。竭誠歡迎全國新老客戶的垂詢、指導(dǎo)！共同前進(jìn) 互利共贏！
該公司產(chǎn)品分類： 日置HIOKI傳感器 WBGT-213A黑球指數(shù)計(jì) COCORESEARCH傳感器 T&D溫度記錄儀 T-101-20張力計(jì) VT-06粘度計(jì) WBGT-213a 黑球指數(shù)計(jì) DA-130N密度計(jì) U-508H皮帶張力計(jì) FMX-004靜電測(cè)試儀 ST-4 電阻測(cè)試儀 60-C4恒溫水浴 DR-A1折光儀 VOAC7522H萬用表 WP632AM檢測(cè)儀 必佳PEAK放大鏡 日本（KANETEC強(qiáng)力） 日本小野（ONO SOKKI） 日本（A&D) 日本（SWAN）

RTD500CNRTD500CN、日本東日扭力起子

 

詳細(xì)說明

型號(hào)
測(cè)量范圍
全長
重量
參考（公制）
最小~最大
刻度
舊型號(hào)
扭力調(diào)整范圍
cN.m
cN.m
mm
kg
最小~最大
 
 
 
 
 
 
kgf.cm
RTD15CN
2~15
0.1
100
50
1.5RTD
0.2~1.5
RTD30CN
4~30
0.2
100
50
3RTD
0.4~3
RTD60CN
10~60
0.5
105
80
6RTD
1~6
RTD120CN
20~120
1
120
125
12RTD
2~12
RTD260CN
60~260
2
140
225
26RTD
6~26
RTD500CN
100~500
2.5
150
330
50RTD
10~50

注1:RTD500CN用輔助緊固工具另購
注2:只有RTD15CN-260CN有鎖止機(jī)構(gòu)
該公司產(chǎn)品分類： 扭力螺絲刀 扭力扳手 艾固扭力測(cè)試儀 日本強(qiáng)力磁性表座 艾森精密針規(guī) 日本佐藤溫濕度記錄儀 日本孔雀厚薄表 日本橫河張力計(jì) 日本強(qiáng)力高斯計(jì) 日本得樂測(cè)厚規(guī)/深度表/硬度計(jì) UNITTA音波式皮帶張力計(jì) TETKO絲網(wǎng)張力計(jì) 日本中村扭力工具 日本東日扭力工具

LTD15CN日本東日扭力起子

LTD Torque Screwdriver
Direction
  
   
 

Non-Rotary Adjustable Style

Clicks at Set Torque Value

Torque Value Easily Set with External Scale

  
 
     
LTD Torque Screwdriver  
  TDT Digital Torque Screwdriver Tester TDT Digital Torque Driver Tester
 
       
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
Model Torque Range Overall Length Weight Approx.
S.I. METRIC AMERICAN Min.-Max. Graduation in. mm oz. g
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - LTD24Z - - in.oz  6-24 - - in.oz  0.1 3 15/16 - 1 7/8 -
LTD50Z 15-50 0.25 3 15/16 1 7/8
LTD100Z 20-100 0.5 4 5/16 2 7/32
LTD15CN 1.5LTD 1.5LTD-A cN.M 2-15 kgf.cm 0.2-1.5 in.lbs 0.2-1.5 cN.M 0.1 kgf.cm 0.01 in.lbs  0.005 3 15/16 100  1 7/8 50
LTD30CN 3LTD 3LTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01
LTD60CN 6LTD 6LTD-A 10-60 1-6 1-6 0.5 0.05 0.025 4 5/16 105 2 7/32 80
LTD120CN 12LTD 12LTD-A 20-120 2-12 2-12 1 0.1 0.05 4 31/32 120 4 7/16 125 
LTD260CN 26LTD 26LTD-A 60-260 6-26 6-26 2 0.2 0.1 4 5/8 140 8 13/16 215
LTD500CN 50LTD 50LTD-A 100-500 10-50 10-40 2.5 0.25 0.25 6 1/8 150 11 5/16 320
LTD1000CN 100LTD 100LTD-A 200-1000 20-100 20-90 5 0.5 0.5 7 7/32 180 22 1/4 580
LTD2000CN 200LTD 200LTD-A 300-2000 30-200 30-180 10 1/16 255 40 9/16 1150
 
  Notes  
  1. For LTD260cn ~ 2000CN, present hook spanner is supplied as standard accessory. 2. For LTD120CN, 260CN, resin grip is supplied as standard accessory. 3. For LTD2000CN, auxiliary tightening tool is supplied as standard accessory. 4. For LTD500CN, 1000CN, optional auxiliary tightening tool is available. 5. Bits for LTD2000CN are supplied from only Tohnichi. 6. Standard bit, 6.35 HEX is available, except for LTD2000CN.

RTD120CN日本東日扭力起子

RTD
 
   
 
Used for any tightening operation such as mass production,maintenance. The rotary slip clutch reduces the possibility of over-torque. Once torque set is achieved, even if more force is applied, the tool ratchetsdoes not add additional torque.
  
 
RTD  
Complimentary Products
TDT TDT Digital Torque Driver Tester
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
MODEL TORQUE RANGE Overall Length Weight Approx. Accessories
S.I. METRIC AMERICAN min.-max. Graduation mm in. g oz. Handle Bar Hook Spanner
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - RTD24Z - - in·oz 6-24 - - in·oz 0.1 - 3 15/16 - 1 7/8 - -
RTD50Z 15-50 0.25 3 15/16 1 7/8
RTD100Z 20-100 0.5 4 5/16 2 7/32
RTD15CN 1.5RTD 1.5RTD-A cN·m 2-15 kgf·cm 0.2-1.5 in·lbs 0.2-1.5 cN·m 0.1 kgf·cm 0.01 in·lbs 0.005 100 3 15/16 50  1 7/8
RTD30CN 3RTD 3RTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01 100 3 15/16 50 1 7/8
RTD60CN 6RTD 6RTD-A 10-60 1-6 1-6 0.5 0.05 0.025 105 4 5/16 80 2 7/32
RTD120CN 12RTD 12RTD-A 20-120 2-12 2-12 1 0.1 0.05 120 4 31/32 125 4 7/16
RTD260CN 26RTD 26RTD-A 60-260 6-26 6-26 2 0.2 0.1 140 4 5/8 225 8 13/16 Standard
RTD500CN 50RTD 50RTD-A 100-500 10-50 10-40 2.5 0.25 0.25 150 6 1/8 330 11 5/16 Option
 
  Note  
  1.For models RTD260CN, 500CN, a hook spanner is supplied as a standard accessory for setting torque. 2.For models RTD120CN, 260CN, a resin grip is standard. 3. This series accepts standard 6.35 (1/4) hex bits, sold separately. Refer to bits page.

RTD30CN日本東日扭力起子

RTD
 
   
 
Used for any tightening operation such as mass production,maintenance. The rotary slip clutch reduces the possibility of over-torque. Once torque set is achieved, even if more force is applied, the tool ratchetsdoes not add additional torque.
  
 
RTD  
Complimentary Products
TDT TDT Digital Torque Driver Tester
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
MODEL TORQUE RANGE Overall Length Weight Approx. Accessories
S.I. METRIC AMERICAN min.-max. Graduation mm in. g oz. Handle Bar Hook Spanner
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - RTD24Z - - in·oz 6-24 - - in·oz 0.1 - 3 15/16 - 1 7/8 - -
RTD50Z 15-50 0.25 3 15/16 1 7/8
RTD100Z 20-100 0.5 4 5/16 2 7/32
RTD15CN 1.5RTD 1.5RTD-A cN·m 2-15 kgf·cm 0.2-1.5 in·lbs 0.2-1.5 cN·m 0.1 kgf·cm 0.01 in·lbs 0.005 100 3 15/16 50  1 7/8
RTD30CN 3RTD 3RTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01 100 3 15/16 50 1 7/8
RTD60CN 6RTD 6RTD-A 10-60 1-6 1-6 0.5 0.05 0.025 105 4 5/16 80 2 7/32
RTD120CN 12RTD 12RTD-A 20-120 2-12 2-12 1 0.1 0.05 120 4 31/32 125 4 7/16
RTD260CN 26RTD 26RTD-A 60-260 6-26 6-26 2 0.2 0.1 140 4 5/8 225 8 13/16 Standard
RTD500CN 50RTD 50RTD-A 100-500 10-50 10-40 2.5 0.25 0.25 150 6 1/8 330 11 5/16 Option
 
  Note  
  1.For models RTD260CN, 500CN, a hook spanner is supplied as a standard accessory for setting torque. 2.For models RTD120CN, 260CN, a resin grip is standard. 3. This series accepts standard 6.35 (1/4) hex bits, sold separately. Refer to bits page.

RTD15CN日本東日扭力起子

RTD
 
   
 
Used for any tightening operation such as mass production,maintenance. The rotary slip clutch reduces the possibility of over-torque. Once torque set is achieved, even if more force is applied, the tool ratchetsdoes not add additional torque.
  
 
RTD  
Complimentary Products
TDT TDT Digital Torque Driver Tester
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
MODEL TORQUE RANGE Overall Length Weight Approx. Accessories
S.I. METRIC AMERICAN min.-max. Graduation mm in. g oz. Handle Bar Hook Spanner
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - RTD24Z - - in·oz 6-24 - - in·oz 0.1 - 3 15/16 - 1 7/8 - -
RTD50Z 15-50 0.25 3 15/16 1 7/8
RTD100Z 20-100 0.5 4 5/16 2 7/32
RTD15CN 1.5RTD 1.5RTD-A cN·m 2-15 kgf·cm 0.2-1.5 in·lbs 0.2-1.5 cN·m 0.1 kgf·cm 0.01 in·lbs 0.005 100 3 15/16 50  1 7/8
RTD30CN 3RTD 3RTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01 100 3 15/16 50 1 7/8
RTD60CN 6RTD 6RTD-A 10-60 1-6 1-6 0.5 0.05 0.025 105 4 5/16 80 2 7/32
RTD120CN 12RTD 12RTD-A 20-120 2-12 2-12 1 0.1 0.05 120 4 31/32 125 4 7/16
RTD260CN 26RTD 26RTD-A 60-260 6-26 6-26 2 0.2 0.1 140 4 5/8 225 8 13/16 Standard
RTD500CN 50RTD 50RTD-A 100-500 10-50 10-40 2.5 0.25 0.25 150 6 1/8 330 11 5/16 Option
 
  Note  
  1.For models RTD260CN, 500CN, a hook spanner is supplied as a standard accessory for setting torque. 2.For models RTD120CN, 260CN, a resin grip is standard. 3. This series accepts standard 6.35 (1/4) hex bits, sold separately. Refer to bits page.

LTD500CN日本東日扭力起子

LTD Torque Screwdriver
Direction
  
   
 

Non-Rotary Adjustable Style

Clicks at Set Torque Value

Torque Value Easily Set with External Scale

  
 
     
LTD Torque Screwdriver  
  TDT Digital Torque Screwdriver Tester TDT Digital Torque Driver Tester
 
       
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
Model Torque Range Overall Length Weight Approx.
S.I. METRIC AMERICAN Min.-Max. Graduation in. mm oz. g
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - LTD24Z - - in.oz  6-24 - - in.oz  0.1 3 15/16 - 1 7/8 -
LTD50Z 15-50 0.25 3 15/16 1 7/8
LTD100Z 20-100 0.5 4 5/16 2 7/32
LTD15CN 1.5LTD 1.5LTD-A cN.M 2-15 kgf.cm 0.2-1.5 in.lbs 0.2-1.5 cN.M 0.1 kgf.cm 0.01 in.lbs  0.005 3 15/16 100  1 7/8 50
LTD30CN 3LTD 3LTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01
LTD60CN 6LTD 6LTD-A 10-60 1-6 1-6 0.5 0.05 0.025 4 5/16 105 2 7/32 80
LTD120CN 12LTD 12LTD-A 20-120 2-12 2-12 1 0.1 0.05 4 31/32 120 4 7/16 125 
LTD260CN 26LTD 26LTD-A 60-260 6-26 6-26 2 0.2 0.1 4 5/8 140 8 13/16 215
LTD500CN 50LTD 50LTD-A 100-500 10-50 10-40 2.5 0.25 0.25 6 1/8 150 11 5/16 320
LTD1000CN 100LTD 100LTD-A 200-1000 20-100 20-90 5 0.5 0.5 7 7/32 180 22 1/4 580
LTD2000CN 200LTD 200LTD-A 300-2000 30-200 30-180 10 1/16 255 40 9/16 1150
 
  Notes  
  1. For LTD260cn ~ 2000CN, present hook spanner is supplied as standard accessory. 2. For LTD120CN, 260CN, resin grip is supplied as standard accessory. 3. For LTD2000CN, auxiliary tightening tool is supplied as standard accessory. 4. For LTD500CN, 1000CN, optional auxiliary tightening tool is available. 5. Bits for LTD2000CN are supplied from only Tohnichi. 6. Standard bit, 6.35 HEX is available, except for LTD2000CN.

LTD260CN日本東日扭力起子

LTD Torque Screwdriver
Direction
  
   
 

Non-Rotary Adjustable Style

Clicks at Set Torque Value

Torque Value Easily Set with External Scale

  
 
     
LTD Torque Screwdriver  
  TDT Digital Torque Screwdriver Tester TDT Digital Torque Driver Tester
 
       
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
Model Torque Range Overall Length Weight Approx.
S.I. METRIC AMERICAN Min.-Max. Graduation in. mm oz. g
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - LTD24Z - - in.oz  6-24 - - in.oz  0.1 3 15/16 - 1 7/8 -
LTD50Z 15-50 0.25 3 15/16 1 7/8
LTD100Z 20-100 0.5 4 5/16 2 7/32
LTD15CN 1.5LTD 1.5LTD-A cN.M 2-15 kgf.cm 0.2-1.5 in.lbs 0.2-1.5 cN.M 0.1 kgf.cm 0.01 in.lbs  0.005 3 15/16 100  1 7/8 50
LTD30CN 3LTD 3LTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01
LTD60CN 6LTD 6LTD-A 10-60 1-6 1-6 0.5 0.05 0.025 4 5/16 105 2 7/32 80
LTD120CN 12LTD 12LTD-A 20-120 2-12 2-12 1 0.1 0.05 4 31/32 120 4 7/16 125 
LTD260CN 26LTD 26LTD-A 60-260 6-26 6-26 2 0.2 0.1 4 5/8 140 8 13/16 215
LTD500CN 50LTD 50LTD-A 100-500 10-50 10-40 2.5 0.25 0.25 6 1/8 150 11 5/16 320
LTD1000CN 100LTD 100LTD-A 200-1000 20-100 20-90 5 0.5 0.5 7 7/32 180 22 1/4 580
LTD2000CN 200LTD 200LTD-A 300-2000 30-200 30-180 10 1/16 255 40 9/16 1150
 
  Notes  
  1. For LTD260cn ~ 2000CN, present hook spanner is supplied as standard accessory. 2. For LTD120CN, 260CN, resin grip is supplied as standard accessory. 3. For LTD2000CN, auxiliary tightening tool is supplied as standard accessory. 4. For LTD500CN, 1000CN, optional auxiliary tightening tool is available. 5. Bits for LTD2000CN are supplied from only Tohnichi. 6. Standard bit, 6.35 HEX is available, except for LTD2000CN.

LTD120CN日本東日扭力起子

LTD Torque Screwdriver
Direction
  
   
 

Non-Rotary Adjustable Style

Clicks at Set Torque Value

Torque Value Easily Set with External Scale

  
 
     
LTD Torque Screwdriver  
  TDT Digital Torque Screwdriver Tester TDT Digital Torque Driver Tester
 
       
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
Model Torque Range Overall Length Weight Approx.
S.I. METRIC AMERICAN Min.-Max. Graduation in. mm oz. g
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - LTD24Z - - in.oz  6-24 - - in.oz  0.1 3 15/16 - 1 7/8 -
LTD50Z 15-50 0.25 3 15/16 1 7/8
LTD100Z 20-100 0.5 4 5/16 2 7/32
LTD15CN 1.5LTD 1.5LTD-A cN.M 2-15 kgf.cm 0.2-1.5 in.lbs 0.2-1.5 cN.M 0.1 kgf.cm 0.01 in.lbs  0.005 3 15/16 100  1 7/8 50
LTD30CN 3LTD 3LTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01
LTD60CN 6LTD 6LTD-A 10-60 1-6 1-6 0.5 0.05 0.025 4 5/16 105 2 7/32 80
LTD120CN 12LTD 12LTD-A 20-120 2-12 2-12 1 0.1 0.05 4 31/32 120 4 7/16 125 
LTD260CN 26LTD 26LTD-A 60-260 6-26 6-26 2 0.2 0.1 4 5/8 140 8 13/16 215
LTD500CN 50LTD 50LTD-A 100-500 10-50 10-40 2.5 0.25 0.25 6 1/8 150 11 5/16 320
LTD1000CN 100LTD 100LTD-A 200-1000 20-100 20-90 5 0.5 0.5 7 7/32 180 22 1/4 580
LTD2000CN 200LTD 200LTD-A 300-2000 30-200 30-180 10 1/16 255 40 9/16 1150
 
  Notes  
  1. For LTD260cn ~ 2000CN, present hook spanner is supplied as standard accessory. 2. For LTD120CN, 260CN, resin grip is supplied as standard accessory. 3. For LTD2000CN, auxiliary tightening tool is supplied as standard accessory. 4. For LTD500CN, 1000CN, optional auxiliary tightening tool is available. 5. Bits for LTD2000CN are supplied from only Tohnichi. 6. Standard bit, 6.35 HEX is available, except for LTD2000CN.

LTD60CN日本東日扭力起子

LTD Torque Screwdriver
Direction
  
   
 

Non-Rotary Adjustable Style

Clicks at Set Torque Value

Torque Value Easily Set with External Scale

  
 
     
LTD Torque Screwdriver  
  TDT Digital Torque Screwdriver Tester TDT Digital Torque Driver Tester
 
       
 
  Select proper model according to unit of measure as following color code :  
 
S.I. =     Metric =     American =  
Accuracy ±3%
  
 
Model Torque Range Overall Length Weight Approx.
S.I. METRIC AMERICAN Min.-Max. Graduation in. mm oz. g
S.I. METRIC AMERICAN S.I. METRIC AMERICAN
- - LTD24Z - - in.oz  6-24 - - in.oz  0.1 3 15/16 - 1 7/8 -
LTD50Z 15-50 0.25 3 15/16 1 7/8
LTD100Z 20-100 0.5 4 5/16 2 7/32
LTD15CN 1.5LTD 1.5LTD-A cN.M 2-15 kgf.cm 0.2-1.5 in.lbs 0.2-1.5 cN.M 0.1 kgf.cm 0.01 in.lbs  0.005 3 15/16 100  1 7/8 50
LTD30CN 3LTD 3LTD-A 4-30 0.4-3 0.4-3 0.2 0.02 0.01
LTD60CN 6LTD 6LTD-A 10-60 1-6 1-6 0.5 0.05 0.025 4 5/16 105 2 7/32 80
LTD120CN 12LTD 12LTD-A 20-120 2-12 2-12 1 0.1 0.05 4 31/32 120 4 7/16 125 
LTD260CN 26LTD 26LTD-A 60-260 6-26 6-26 2 0.2 0.1 4 5/8 140 8 13/16 215
LTD500CN 50LTD 50LTD-A 100-500 10-50 10-40 2.5 0.25 0.25 6 1/8 150 11 5/16 320
LTD1000CN 100LTD 100LTD-A 200-1000 20-100 20-90 5 0.5 0.5 7 7/32 180 22 1/4 580
LTD2000CN 200LTD 200LTD-A 300-2000 30-200 30-180 10 1/16 255 40 9/16 1150
 
  Notes  
  1. For LTD260cn ~ 2000CN, present hook spanner is supplied as standard accessory. 2. For LTD120CN, 260CN, resin grip is supplied as standard accessory. 3. For LTD2000CN, auxiliary tightening tool is supplied as standard accessory. 4. For LTD500CN, 1000CN, optional auxiliary tightening tool is available. 5. Bits for LTD2000CN are supplied from only Tohnichi. 6. Standard bit, 6.35 HEX is available, except for LTD2000CN.

最新產(chǎn)品

熱門儀器： 液相色譜儀 氣相色譜儀 原子熒光光譜儀 可見分光光度計(jì) 液質(zhì)聯(lián)用儀 壓力試驗(yàn)機(jī) 酸度計(jì)（PH計(jì)） 離心機(jī) 高速離心機(jī) 冷凍離心機(jī) 生物顯微鏡 金相顯微鏡 標(biāo)準(zhǔn)物質(zhì) 生物試劑