Munktell高纯定性滤纸QUALITATIVE PAPERS
The extremely pure filter paper grades 120H to 5 and 292, 292a are made of pure cotton pulp. All other grades are made of cellulose with an alpha content of nearly 100%. The ash content for grades 120H to 5 is approx. 0.06%. For all other grades it is below 0.1%.
HIGH PURITY HARDENED FILTER PAPERS
Grade BasisWeight FiltrationVelocity Herzberg Herzberg Typical Pore Size
g/m2 s/10ml s/100ml ml/min μm
Ederol
11/N 80 10 60 900 12 - 15
12/N 80 25 150 400 8 - 12
13/N 80 60 240 250 5 - 8
14/N 80 150 750 80 2 - 3
Filtrak
1288 84 10 70 850 12-15
1289 84 20 160 375 8 - 12
1290 84 100 1200 50 3 - 5
1291 84 180 2500 25 2 - 3
1292 84 50 400 130 5 - 8
Grade BasisWeight FiltrationVelocity Herzberg Herzberg Typical Pore Size
g/m2 s/10 ml s/100 ml ml/min μm
Filtrak
292 87 50 500 120 5 - 8
292a 97 60 650 90 5 - 8
293 80 300 4000 15 1 - 2
Ederol
15 65 25 170 350 8 - 12
20 120 11 120 500 12 - 15
Munktell
5 130 9 60 1000 > 20
3 90 11 85 700 > 10
150 90 13 130 450 8 - 10
1F 80 29 300 200 5 - 6
110 80 48 480 125 4 - 5
106 100 75 750 80 3 - 4
120H 80 160 1500 40 1 - 2
STANDARD SIZES Filter Circles, in mm
45 50 55 70 90 110 125 150 185 240 270 320 385 450 500
STANDARD SIZES Folded Filters, in mm
90 110 125 150 185 240 270 320 385 450 500
Other sizes and sheet dimensions available upon request.
Grade Filtration Properties Applications
Ederol / Filtrak
11/N fast filtering,wide pores, for coarse and voluminous precipitates such as
1288 hardened iron-aluminum-and chromium hydroxide;
Si-determination insteel and pig iron analysis
12/N medium fast filtering, typical grades for quanlitative tasks, coarser
1289 medium wide pores, precipitates hardened such as lead-,iron-andsilver
sulphide; alcali carbonates;beer and malt analysis
13/N medium to slowlyfiltering, fast filtration of fine precipitates such as
1292 medium tight,hardened calcium oxalate,magnesium ammonium phosphate,
coarser forms of barium sulphate
14/N very slowly filtering, fine-grained precipitates such as barium sulphate,
1291 finepores,ashless,hardened metastannic acid, cuprous oxide1290 slowly filtering, filtration of fine precipitates such as nickel
narrow pores,hardened sulphide,leaddioxide, calcium fluoride
15 medium fastfiltering,medium thin filter paper for general laboratory work,
large pores,thin,hardened filtration of water samples
20 fast filtering, wide pores, strong paper,particularly used in form of folded
slightly hardened filters,for coarse, voluminous precipitates
293 particularly slowlyfiltering, for extremely difficult filtration conditions
particularly fine pores and particularly fine precipitates,common type
for wine clarification
Munktell / Filtrak
5 fast filtering, wide pores for coarse and voluminous precipitates such as
iron-aluminum-and chromium hydroxide;
Si-determination insteel and pig iron analysis
3 fast filtering, wide pores for coarse and voluminous precipitates such as
iron- aluminum- and chromium hydroxide;
Si-determination in steel and pig iron analysis
150 medium fast filtering typical grades for quantitative tasks, coarser
medium large pores precipitates such as lead-,iron- and silver
sulphide;alcali carbonates;calcium oxalate
1F medium to slowlyfiltering, fast filtration of fine precipitates such as
medium tight calcium oxalate, magnesium ammonium phosphate,
coarser forms of barium sulphate
110 medium to slowlyfiltering, fast filtration of fine precipitates such as
292 medium tight calcium oxalate, magnesium ammonium phosphate,
coarser forms of barium sulphate
106 slowlyfiltering,narrowpores filtration of fine precipitates such as lead dioxide,
292a calciumfluoride,nickel sulphide, zinc sulphide
120H very slowly filtering for very fine precipitates such as barium
narrow pores sulphate, metastannic acid, cuprous oxide
高度纯净的滤纸(120H到5,292以及292a级别)是由纯净的棉绒纸浆制成,其他级别的由将近100%含量的α纤维制成。120H到5级别的灰尘含量约0.06%,其他所有级别灰尘含量低于0.1%.
Qualitative filter papers 定性滤纸
11/N、12/N、13/N、14/N、1288、1289、1290、1291、1292、292、292 a、293、15、20、5、3、150、1F、110、106、120H120H高纯定性滤纸:高纯棉纤维制成,非常缓慢过滤,窄孔径,灰分0.06%,基重80 g/m2 ,过滤速率160 s/10ml,孔径1~2μm,Herzberg1500s/100ml,Herzberg40ml/min;推荐用于做定性分析。应用举例:精细粒度过滤,如硫酸钡、偏锡酸、氧化亚铜等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quanlitative filter paper
1 Mu121 001w 120H 55 100pc/box 定性滤纸 5 盒/PK
2 Mu121 002w 120H 70 100pc/box 定性滤纸 5 盒/PK
3 Mu121 003w 120H 90 100pc/box 定性滤纸 5 盒/PK
4 Mu121 004w 120H 110 100pc/box 定性滤纸 5 盒/PK
5 Mu121 005w 120H 125 100pc/box 定性滤纸 5 盒/PK
6 Mu121 006w 120H 150 100pc/box 定性滤纸 5 盒/PK
7 Mu121 007w 120H 185 100pc/box 定性量滤纸 5 盒/PK
8 Mu121 008w 120H 240 100pc/box 定性滤纸 5 盒/PK
9 Mu121 009w 120H 320 100pc/box 定性滤纸 5 盒/PK
10 Mu121 021w 120H 480*480 100pc/box 定性滤纸
11 Mu121 022w 120H 480*480 500pc/box 定性滤纸
106高纯定性滤纸:高纯棉纤维制成,缓慢过滤,窄孔径,灰分0.06%;基重100 g/m2 ,过滤速率75 s/10ml,孔径3~4μm,Herzberg850s/100ml, Herzberg80ml/min;推荐用于做定性分析。应用举例:微细粒度过滤,如二氧化铅、氟化钙、硫化锌、硫化镍等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quanlitative filterpaper
1 Mu122 001w 1O6 55 100pc/box 定性滤纸 5 盒/PK
2 Mu122 002w 1O6 70 100pc/box 定性滤纸 5 盒/PK
3 Mu122 003w 1O6 90 100pc/box 定性滤纸 5 盒/PK
4 Mu122 004w 1O6 110 100pc/box 定性滤纸 5 盒/PK
5 Mu122 005w 1O6 125 100pc/box 定性滤纸 5 盒/PK
6 Mu122 006w 1O6 150 100pc/box 定性滤纸 5 盒/PK
7 Mu122 007w 1O6 185 100pc/box 定性滤纸 5 盒/PK
8 Mu122 008w 1O6 240 100pc/box 定性滤纸 5 盒/PK
9 Mu122 009w 1O6 320 100pc/box 定性滤纸 5 盒/PK
10 Mu123 021w 1O6 480*480 100pc/box 定性滤纸
11 Mu123 022w 1O6 480*480 500pc/box 定量滤纸
110高纯定性滤纸:高纯棉纤维制成,中到慢速过滤,中等紧密、灰分0.06%; 基重80 g/m2 ,过滤速率48s/10ml,孔径4~5μm,Herzberg480s/100ml, Herzberg125ml/min;推荐用于做定性分析。应用举例:微细粒度快速过滤,如草酸钙、磷酸镁铵、硫化锌、粗造的硫酸钡等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quanlitative filter paper
1 Mu123 001w 11O 55 100pc/box 定性滤纸 5 盒/PK
2 Mu123 002w 11O 70 100pc/box 定性滤纸 5 盒/PK
3 Mu123 003w 11O 90 100pc/box 定性滤纸 5 盒/PK
4 Mu123 004w 11O 110 100pc/box 定性滤纸 5 盒/PK
5 Mu123 005w 11O 125 100pc/box 定性滤纸 5 盒/PK
6 Mu123 006w 11O 150 100pc/box 定性滤纸 5 盒/PK
7 Mu123 007w 11O 185 100pc/box 定性滤纸 5 盒/PK
8 Mu123 008w 110 240 100pc/box 定性滤纸 5 盒/PK
9 Mu123 009w 110 320 100pc/box 定性滤纸 5 盒/PK
10 Mu123 021w 110 480*480 100pc/box 定性滤纸
11 Mu123 022w 110 480*480 500pc/box 定性滤纸
1/F高纯定性滤纸:高纯棉纤维制成,中到慢速过滤,中等致密,灰分0.06; 基重80 g/m2 ,过滤速率29s/10ml,孔径5~6μm,Herzberg300s/100ml, Herzberg200ml/min;推荐用于做定性分析。应用举例:细粒度快速过滤,如草酸钙、磷酸镁铵、硫化锌、粗造的硫酸钡等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quanlitative filterpaper
1 Mu124 001w 1/F 55 100pc/box 定性滤纸 5 盒/PK
2 Mu124 002w 1/F 70 100pc/box 定性滤纸 5 盒/PK
3 Mu124 003w 1/F 90 100pc/box 定性滤纸 5 盒/PK
4 Mu124 004w 1/F 110 100pc/box 定性滤纸 5 盒/PK
5 Mu124 005w 1/F 125 100pc/box 定性滤纸 5 盒/PK
6 Mu124 006w 1/F 150 100pc/box 定性滤纸 5 盒/PK
7 Mu124 007w 1/F 185 100pc/box 定性滤纸 5 盒/PK
8 Mu124 008w 1/F 240 100pc/box 定性滤纸 5 盒/PK
9 Mu124 009w 1/F 320 100pc/box 定性滤纸 5 盒/PK
10 Mu124 021w 1/F 480*480 100pc/box 定性滤纸
11 Mu124 022w 1/F 480*480 500pc/box 定性滤纸
150高纯定性滤纸:高纯棉纤维制成,中到快速过滤,中大孔径,灰分0.06%,基重90 g/m2 ,过滤速率13s/10ml,孔径8~10μm,Herzberg130s/100ml, Herzberg450ml/min;推荐用于做定性分析。应用举例:典型定量滤纸,较粗糙粒度过滤 如铅、铁离子和硫化银、碱金属碳酸盐等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper
1 Mu125 001w 15O 55 100pc/box 定性滤纸 5 盒/PK
2 Mu125 002w 15O 70 100pc/box 定性滤纸 5 盒/PK
3 Mu125 003w 15O 90 100pc/box 定性滤纸 5 盒/PK
4 Mu125 004w 15O 110 100pc/box 定性滤纸 5 盒/PK
5 Mu125 005w 15O 125 100pc/box 定性滤纸 5 盒/PK
6 Mu125 006w 15O 150 100pc/box 定性滤纸 5 盒/PK
7 Mu125 007w 15O 185 100pc/box 定性滤纸 5 盒/PK
8 Mu125 008w 15O 240 100pc/box 定性滤纸 5 盒/PK
9 Mu125 009w 15O 320 100pc/box 定性滤纸 5 盒/PK
10 Mu125 021w 15O 480*480 100pc/box 定性滤纸
11 Mu125 022w 15O 480*480 500pc/box 定性滤纸
3高纯定性滤纸:高纯棉纤维制成,快速过滤,宽孔径,灰分0.06%,基重130 g/m2 ,过滤速率9s/10ml,孔径>20μm,Herzberg60s/100ml, Herzberg1000ml/min;推荐用于做定性分析。应用举例:粗糙大体积粒度过滤 如铁、铝和鉻氢氧化物过滤、钢、生铁分析中硅Si检测等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper
1 Mu126 001w 3 55 100pc/box 定性滤纸 5 盒/PK
2 Mu126 002w 3 70 100pc/box 定性滤纸 5 盒/PK
3 Mu126 003w 3 90 100pc/box 定性滤纸 5 盒/PK
4 Mu126 004w 3 110 100pc/box 定性滤纸 5 盒/PK
5 Mu126 005w 3 125 100pc/box 定性滤纸 5 盒/PK
6 Mu126 006w 3 150 100pc/box 定性滤纸 5 盒/PK
7 Mu126 007w 3 185 100pc/box 定性滤纸 5 盒/PK
8 Mu126 008w 3 240 100pc/box 定性滤纸 5 盒/PK
9 Mu126 009w 3 320 100pc/box 定性滤纸 5 盒/PK
10 Mu126 021w 3 480*480 100pc/box 定性滤纸
11 Mu126 022w 3 480*480 500pc/box 定性滤纸
5高纯定性滤纸:高纯棉纤维制成,快速过滤,宽孔径,灰分0.06%,基重90 g/m2 ,过滤速率11s/10ml,孔径>10μm,Herzberg85s/100ml, Herzberg700ml/min;推荐用于做定性分析。应用举例:粗糙大体积粒度过滤 如铁、铝和鉻氢氧化物过滤、钢、生铁分析中硅Si检测等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper
1 Mu127 001w 5 55 50pc/box 定性滤纸 5 盒/PK
2 Mu127 002w 5 70 50pc/box 定性滤纸 5 盒/PK
3 Mu127 003w 5 90 50pc/box 定性滤纸 5 盒/PK
4 Mu127 004w 5 110 50pc/box 定性滤纸 5 盒/PK
5 Mu127 005w 5 125 50pc/box 定性滤纸 5 盒/PK
6 Mu127 006w 5 150 50pc/box 定性滤纸 5 盒/PK
7 Mu127 007w 5 185 50pc/box 定性滤纸 5 盒/PK
8 Mu127 008w 5 240 50pc/box 定性滤纸 5 盒/PK
9 Mu127 009w 5 320 50pc/box 定性滤纸 5 盒/PK
10 Mu127 021w 5 480*480 100pc/box 定性滤纸
11 Mu127 022w 5 480*480 250pc/box 定性滤纸
11高纯定性硬化滤纸:几乎100%α纤维制成,快速过滤,宽孔径,灰分<0.1%, 基重80 g/m2 ,过滤速率10s/10ml,孔径12~15μm,Herzberg60s/100ml, Herzberg900ml/min;推荐用于做定性分析。应用举例:粗糙大体积粒度过滤 如铁、铝和鉻氢氧化物过滤;钢、生铁分析中硅Si检测等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper,hardened
1 Mu128 202w 11 55 100pc/box 定性硬化滤纸 5 盒/PK
2 Mu128 203w 11 70 1000pc/box 定性硬化滤纸 5 盒/PK
3 Mu128 204w 11 90 100pc/box 定性硬化滤纸 5 盒/PK
4 Mu128 205w 11 110 100pc/box 定性硬化滤纸 5 盒/PK
5 Mu128 206w 11 125 100pc/box 定性硬化滤纸 5 盒/PK
6 Mu128 207w 11 150 100pc/box 定性硬化滤纸 5 盒/PK
7 Mu128 208w 11 185 1000pc/box 定性硬化滤纸 5 盒/PK
8 Mu128 209w 11 240 100pc/box 定性硬化滤纸 5 盒/PK
9 Mu128 210w 11 320 100pc/box 定性硬化滤纸 5 盒/PK
10 Mu128 221w 11 480*480 100pc/box 定性硬化滤纸
11 Mu128 222w 11 480*480 500pc/box 定性硬化滤纸
12高纯定性硬化滤纸:几乎100%α纤维制成,中到快速过滤,中偏宽孔径,灰分<0.1%, 基重80 g/m2 ,过滤速率25s/10ml,孔径8~12μm,Herzberg150s/100ml, Herzberg400ml/min;推荐用于做定性分析。应用举例:典型定量滤纸,较粗粒度过滤 如铅、铁和硫化银,碱金属碳酸盐,啤酒和麦芽分析等序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper,hardened
1 Mu128 302w 12 55 100pc/box 定性硬化滤纸 5 盒/PK
2 Mu128 303w 12 70 1000pc/box 定性硬化滤纸 5 盒/PK
3 Mu128 304w 12 90 100pc/box 定性硬化滤纸 5 盒/PK
4 Mu128 305w 12 110 100pc/box 定性硬化滤纸 5 盒/PK
5 Mu128 306w 12 125 100pc/box 定性硬化滤纸 5 盒/PK
6 Mu128 307w 12 150 100pc/box 定性硬化滤纸 5 盒/PK
7 Mu128 308w 12 185 1000pc/box 定性硬化滤纸 5 盒/PK
8 Mu128 309w 12 240 100pc/box 定性硬化滤纸 5 盒/PK
9 Mu128 309w 12 320 100pc/box 定性硬化滤纸 5 盒/PK
10 Mu128 321w 12 480*480 100pc/box 定性硬化滤纸
11 Mu128 322w 12 480*480 500pc/box 定性硬化滤纸
13高纯定性硬化滤纸:几乎100%α纤维制成,中到慢速过滤,中等致密,灰分<0.1%, 基重80 g/m2 ,过滤速率60s/10ml,孔径5~8μm,Herzberg240s/100ml, Herzberg250ml/min;推荐用于做定性分析。应用举例:应用举例:微细粒度快速过滤,如草酸钙、磷酸镁铵、硫化锌、粗造的硫酸钡等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper,hardened
1 Mu128 402w 13 55 100pc/box 定性硬化滤纸 5 盒/PK
2 Mu128 403w 13 70 1000pc/box 定性硬化滤纸 5 盒/PK
3 Mu128 404w 13 90 100pc/box 定性硬化滤纸 5 盒/PK
4 Mu128 405w 13 110 100pc/box 定性硬化滤纸 5 盒/PK
5 Mu128 406w 13 125 100pc/box 定性硬化滤纸 5 盒/PK
6 Mu128 407w 13 150 100pc/box 定性硬化滤纸 5 盒/PK
7 Mu128 408w 13 185 1000pc/box 定性硬化滤纸 5 盒/PK
8 Mu128 409w 13 240 100pc/box 定性硬化滤纸 5 盒/PK8
9 Mu128 410w 13 320 100pc/box 定性硬化滤纸 5 盒/PK
10 Mu128 421w 13 480*480 100pc/box 定性硬化滤纸
11 Mu128 422w 13 480*480 500pc/box 定性硬化滤纸
14高纯定性硬化滤纸:几乎100%α纤维制成,中到慢速过滤,中等致密,灰分<0.1%, 基重80 g/m2 ,过滤速率150s/10ml,孔径2~3μm,Herzberg750s/100ml, Herzberg80ml/min;推荐用于做定性分析。应用举例:精细粒度过滤,如硫酸钡、偏锡酸、氧化亚铜等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper,hardened
1 Mu128 502w 14 55 100pc/box 定性硬化滤纸 5 盒/PK
2 Mu128 503w 14 70 1000pc/box 定性硬化滤纸 5 盒/PK
3 Mu128 504w 14 90 100pc/box 定性硬化滤纸 5 盒/PK
4 Mu128 505w 14 110 100pc/box 定性硬化滤纸 5 盒/PK
5 Mu128 506w 14 125 100pc/box 定性硬化滤纸 5 盒/PK
6 Mu128 507w 14 150 100pc/box 定性硬化滤纸 5 盒/PK
7 Mu128 508w 14 185 1000pc/box 定性硬化滤纸 5 盒/PK
8 Mu128 509w 14 240 100pc/box 定性硬化滤纸 5 盒/PK8
9 Mu128 510w 14 320 100pc/box 定性硬化滤纸 5 盒/PK
10 Mu128 521w 14 480*480 100pc/box 定性硬化滤纸
11 Mu128 522w 14 480*480 500pc/box 定性硬化滤纸15高纯定性硬化滤纸:几乎100%α纤维制成,中快速过滤,中大孔径,薄,灰分<0.1%, 基重65 g/m2 ,过滤速率25s/10ml,孔径8~12μm,Herzberg170s/100ml, Herzberg350ml/min;推荐用于做定性分析。应用举例:薄滤纸,普通实验室过滤,水样过滤等
序号 货号 品名 尺寸(mm) 规格(box) 描述Quantitiative filter paper,hardened
1 Mu128 602w 15 55 100pc/box 定性硬化滤纸 5 盒/PK
2 Mu128 603w 15 70 1000pc/box 定性硬化滤纸 5 盒/PK
3 Mu128 604w 15 90 100pc/box 定性硬化滤纸 5 盒/PK
4 Mu128 605w 15 110 100pc/box 定性硬化滤纸 5 盒/PK
5 Mu128 606w 15 125 100pc/box 定性硬化滤纸 5 盒/PK
6 Mu128 607w 15 150 100pc/box 定性硬化滤纸 5 盒/PK
7 Mu128 608w 15 185 1000pc/box 定性硬化滤纸 5 盒/PK
8 Mu128 609w 15 240 100pc/box 定性硬化滤纸 5 盒/PK8
9 Mu128 610w 15 320 100pc/box 定性硬化滤纸 5 盒/PK
10 Mu128 621w 15 480*480 100pc/box 定性硬化滤纸
11 Mu128 622w 15 480*480 500pc/box 定性硬化滤纸
20高纯定性硬化滤纸:几乎100%α纤维制成,快速过滤,宽孔径,略有硬化,灰分<0.1%, 基重120 g/m2 ,过滤速率11s/10ml,孔径12~15μm,Herzberg120s/100ml, Herzberg500ml/min;纸性强固,特别用于折叠滤纸,粗糙、大容量颗粒过滤。
序号 货号 品名 尺寸(mm) 规格(box) 描述Quanlitiative filter paper,hardened
10 Mu128 721w 20 480*480 100pc/box 定性硬化滤纸
11 Mu128 723w 20 480*480 500pc/box 定性硬化滤纸
序号 货号 品名 尺寸(mm) 规格(box) 描述Quanlitiative filter paper,
1 Mu125 201w Munktellno1 55 100pc/box 定性滤纸 5 盒/PK
2 Mu125 202w Munktellno1 70 100pc/box 定性滤纸 5 盒/PK
3 Mu125 203w Munktellno1 90 100pc/box 定性滤纸 5 盒/PK
4 Mu125 204w Munktellno1 110 100pc/box 定性滤纸 5 盒/PK
5 Mu125 205w Munktellno1 125 100pc/box 定性滤纸 5 盒/PK
6 Mu125 206w Munktellno1 150 100pc/box 定性滤纸 5 盒/PK
7 Mu125 207w Munktellno1 185 100pc/box 定性滤纸 5 盒/PK
8 Mu125 208w Munktellno1 240 100pc/box 定性滤纸 5 盒/PK
9 Mu125 210w Munktellno1 320 100pc/box 定性滤纸 5 盒/PK
10 Mu125 227w Munktellno1 480*480 100pc/box 定性滤纸
11 Mu125 223w Munktellno1 480*480 500pc/box 定性滤纸
1 Mu125 301w Munktellno2 55 100pc/box 定性滤纸 5 盒/PK
2 Mu125 302w Munktellno2 70 100pc/box 定性滤纸 5 盒/PK
3 Mu125 303w Munktellno2 90 100pc/box 定性滤纸 5 盒/PK
4 Mu125 304w Munktellno2 110 100pc/box 定性滤纸 5 盒/PK
5 Mu125 305w Munktellno2 125 100pc/box 定性滤纸 5 盒/PK
6 Mu125 306w Munktellno2 150 100pc/box 定性滤纸 5 盒/PK
7 Mu125 307w Munktellno2 185 100pc/box 定性滤纸 5 盒/PK
8 Mu125 308w Munktellno2 240 100pc/box 定性滤纸 5 盒/PK
9 Mu125 310w Munktellno2 320 100pc/box 定性滤纸 5 盒/PK
10 Mu125 320w Munktellno2 480*480 100pc/box 定性滤纸
11 Mu125 321w Munktellno2 480*480 500pc/box 定性滤纸
Grade Comparison定性滤纸型号比对表
Munktell Whatman Ahlstrom Schleicher&Schuell MFS/Advantec
Munktell no.1 1 601 593 2
Munktell no.2 2 642 597 231
3S/H 3 237 n/a
1288 4 631 604 1
1289 n/a n/a 1574 n/a
1290 6 950 594 232
1291 n/a n/a 1575 n/a
3hw Student grade 601 595 n/a
1293 5 610 602H 235
定性滤纸