DR…50B型50系列壓力控制閥是先導(dǎo)式減壓閥，用于系統(tǒng)減壓。
這種減壓閥由主閥體及主閥芯和帶壓力設(shè)定件的先導(dǎo)閥構(gòu)成。
停止時(shí)閥開啟，即油從油路B經(jīng)過主閥芯流向油路A，A腔壓力作用在主閥芯底部。同時(shí)來自油路A的壓力經(jīng)主閥芯節(jié)流孔并通過孔，作用在先導(dǎo)閥的球形閥芯上。根據(jù)彈簧的設(shè)定值，在球形閥芯前、油路和彈簧腔建立起壓力，控制閥芯在開啟位置。油可以**地從B流向A，直到A腔壓力超過彈簧的設(shè)定壓力，閥芯打開？刂崎y芯移動(dòng)到關(guān)閉位置與A腔壓力與彈簧到達(dá)平衡時(shí)，就打到了要求的減圧圧力。
華德6.jpg華德3.jpg華德5.jpg
控制油總是有彈簧腔經(jīng)油口外泄油。
單向閥用了使油流從油路A**的流回到油路B。
壓力表接口用來連接壓力表以檢測(cè)A口二次壓力。
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通徑
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管式
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通徑
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公制
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英制
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|
|
8
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M18x1.5
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G3/8"
|
|
10
|
10
|
10
|
M22x1.5
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G1/2"
|
|
|
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16
|
M27x2
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G3/4"
|
|
20
|
20
|
20
|
M33X2
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G1"
|
|
|
|
25
|
M42x2
|
G1 1 /4"
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|
32
|
30
|
30
|
M48x2
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G11 /2"
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壓力等級(jí)（MPa）
|
30
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5X
|
|
5
|
|
5
|
|
10
|
10
|
10
|
|
20
|
|
20
|
|
31.5
|
|
31.5
|
|
35
|
35
|
35
|
|
通經(jīng)
|
（8）10
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（15）20
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（25）30
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|
流量(L/min.)
|
80
|
200
|
300
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|
工作壓力（MPa）
|
31.5
|
|
壓力（MPa）
|
31.5
|
|
出口壓力（MPa）
|
0.3~31.5
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1-31.5
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背壓Y口（MPa）
|
31.5
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介質(zhì)溫度(℃)
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-20~70
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過濾精度(μ)
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25
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部分型號(hào)：
DR5DP2-10B/25XYM
DR5DP2-10B/75XYM
DR5DP2-10B/150XYM
DR5DP2-10B/210XYM
DR5DP2-10B/315XYM
FDR5DP3-10B/25XYM
FDR5DP3-10B/75XYM
FDR5DP3-10B/150XYM
FDR5DP3-10B/210XYM
FDR5DP3-10B/315XYM
DR5DP3-10B/25XYM
DR5DP3-10B/75XYM
DR5DP3-10B/150XYM
DR5DP3-10B/210XYM
DR5DP3-10B/315XYM
FDR5DP1-10B/25Y
FDR5DP1-10B/75Y
FDR5DP1-10B/150Y
FDR5DP1-10B/210Y
FDR5DP1-10B/315Y
DR5DP1-10B/25Y
DR5DP1-10B/75Y
DR5DP1-10B/150Y
DR5DP1-10B/210Y
DR5DP1-10B/315Y
FDR5DP2-10B/25Y
FDR5DP2-10B/75Y
FDR5DP2-10B/150Y
FDR5DP2-10B/210Y
FDR5DP2-10B/315Y
DR5DP2-10B/25Y
DR5DP2-10B/75Y
DR5DP2-10B/150Y
DR5DP2-10B/210Y
DR5DP2-10B/315Y
FDR5DP3-10B/25Y
FDR5DP3-10B/75Y
FDR5DP3-10B/150Y
FDR5DP3-10B/210Y
FDR5DP3-10B/315Y
DR5DP3-10B/25Y
DR5DP3-10B/75Y
DR5DP3-10B/150YDR20-5-50B/100YM北京華德先導(dǎo)式減壓閥批量現(xiàn)貨
DR5DP3-10B/210Y
DR5DP3-10B/315Y
FDR5DP1-10B/25XY
FDR5DP1-10B/75XY
FDR5DP1-10B/150XY
FDR5DP1-10B/210XY
FDR5DP1-10B/315XY
DR5DP1-10B/25XY
DR5DP1-10B/75XY
DR5DP1-10B/150XY
DR5DP1-10B/210XY
DR5DP1-10B/315XY
FDR5DP2-10B/25XY
FDR5DP2-10B/75XY
FDR5DP2-10B/150XY
FDR5DP2-10B/210XY
FDR5DP2-10B/315XY
DR5DP2-10B/25XY
DR5DP2-10B/75XY
DR5DP2-10B/150XY
DR5DP2-10B/210XY
DR5DP2-10B/315XY
FDR5DP3-10B/25XY
FDR5DP3-10B/75XY
FDR5DP3-10B/150XY
FDR5DP3-10B/210XY
FDR5DP3-10B/315XY
DR5DP3-10B/25XY
DR5DP3-10B/75XY
DR5DP3-10B/150XY
DR5DP3-10B/210XY
DR5DP3-10B/315XY
DR6DP1-50B/25YM
DR6DP1-50B/75YM
DR6DP1-50B/150YM
DR6DP1-50B/210YM
DR6DP2-50B/25YM
DR6DP2-50B/75YM
DR6DP2-50B/150YM
DR6DP2-50B/210YM
DR6DP3-50B/25YM
DR6DP3-50B/75YM
DR6DP3-50B/150YM
DR6DP3-50B/210YM
DR6DP7-50B/25YM
DR6DP7-50B/75YM
DR6DP7-50B/150YM
DR6DP7-50B/210YM
DR6DP1-50B/25Y
DR6DP1-50B/75Y
DR6DP1-50B/150Y
DR6DP1-50B/210Y
DR6DP2-50B/25Y
DR6DP2-50B/75Y
DR6DP2-50B/150Y
DR6DP2-50B/210Y
DR6DP3-50B/25Y
DR6DP3-50B/75Y
DR6DP3-50B/150Y
DR6DP3-50B/210Y
DR6DP7-50B/25Y
DR6DP7-50B/75Y
DR6DP7-50B/150Y
DR6DP7-50B/210Y
DR10DP1-40B/25YM
DR10DP1-40B/75YM
DR10DP1-40B/150YM
DR10DP1-40B/210YM
DR10DP2-40B/25YM
DR10DP2-40B/75YM
DR10DP2-40B/150YM
DR10DP2-40B/210YM
DR10DP3-40B/25YM
DR10DP3-40B/75YM
DR10DP3-40B/150YM
DR10DP3-40B/210YM
DR10DP7-40B/25YM
DR10DP7-40B/75YM
DR10DP7-40B/150YM
DR10DP7-40B/210YM
DR10DP1-40B/25Y
DR10DP1-40B/75Y
DR10DP1-40B/150Y
DR10DP1-40B/210Y
DR10DP2-40B/25Y
DR10DP2-40B/75Y
DR10DP2-40B/150Y
DR10DP2-40B/210Y
DR10DP3-40B/25Y
DR10DP3-40B/75Y
DR10DP3-40B/150Y
DR10DP3-40B/210Y
DR10DP7-40B/25Y
DR10DP7-40B/75Y
DR10DP7-40B/150Y
DR10DP7-40B/210Y
DR10G-1-30B/100YM
DR15G-1-30B/100YM
DR20G-1-30B/100YM
DR25G-1-30B/100YM
DR30G-1-30B/100YM
DR10-1-30B/100YM
DR20-1-30B/100YM
DR30-1-30B/100YM
DRC10G-1-30B/100YM
DRC15G-1-30B/100YM
DRC20G-1-30B/100YM
DRC25G-1-30B/100YM
DRC30G-1-30B/100YM
DRC10-1-30B/100YM
DRC20-1-30B/100YM
DRC30-1-30B/100YM
DR10G-2-30B/100YM
DR15G-2-30B/100YM
DR20G-2-30B/100YM
DR25G-2-30B/100YM
DR30G-2-30B/100YM
DR10-2-30B/100YM
DR20-2-30B/100YM
DR30-2-30B/100YM
DRC10G-2-30B/100YM
DRC15G-2-30B/100YM
DRC20G-2-30B/100YM
DRC25G-2-30B/100YM
DRC30G-2-30B/100YM
DRC10-2-30B/100YM
DRC20-2-30B/100YM
DRC30-2-30B/100YM
DR10G-3-30B/100YM
DR15G-3-30B/100YM
DR20G-3-30B/100YM
DR25G-3-30B/100YM
DR30G-3-30B/100YM
DR10-3-30B/100YM
DR20-3-30B/100YM
DR30-3-30B/100YM
DRC10G-3-30B/100YM
DRC15G-3-30B/100YM
DRC20G-3-30B/100YM
DRC25G-3-30B/100YM
DRC30G-3-30B/100YM
DRC10-3-30B/100YM
DRC20-3-30B/100YM
DRC30-3-30B/100YM
DR10G-1-30B/315YM
DZC20-3-50B315Y
DZC20-7-50B315Y
DZ20-1-50B50Y
DZ20-2-50B50Y
DZ20-3-50B50Y
DZ20-7-50B50Y
DZ20-1-50B100Y
DZ20-2-50B100YDR20-5-50B/100YM北京華德先導(dǎo)式減壓閥批量現(xiàn)貨
DZ20-3-50B100Y
DZ20-7-50B100Y
DZ20-1-50B200Y
DZ20-2-50B200Y
DZ20-3-50B200Y
DZ20-7-50B200Y
DZ20-1-50B315Y
DZ20-2-50B315Y
DZ20-3-50B315Y
DZ20-7-50B315Y
DZC30-1-50B50Y
DZC30-2-50B50Y
DZC30-3-50B50Y
DZC30-7-50B50Y
DZC30-1-50B100Y
DZC30-2-50B100Y
DZC30-3-50B100Y
DZC30-7-50B100Y
DZC30-1-50B200Y
DZC30-2-50B200Y
DZC30-3-50B200Y
DZC30-7-50B200Y
DZC30-1-50B315Y
DZC30-2-50B315Y
DZC30-3-50B315Y
DZC30-7-50B315Y
DZ30-1-50B50Y
DZ30-2-50B50Y
DZ30-3-50B50Y
DZ30-7-50B50Y
DZ30-1-50B100Y
DZ30-2-50B100Y
DZ30-3-50B100Y
DZ30-7-50B100Y
DZ30-1-50B200Y
DZ30-2-50B200Y
DZ30-3-50B200Y
DZ30-7-50B200Y
DZ30-1-50B315Y
DZ30-2-50B315Y
DZ30-3-50B315Y
DZ30-7-50B315Y
DAWC10A-1-30B/80
DAWC20A-1-30B/80
DAWC30A-1-30B/80
DAWC10A-1-30B/160
DAWC20A-1-30B/160
DAWC30A-1-30B/160
DAWC10A-1-30B/315
DAWC20A-1-30B/315
DAWC30A-1-30B/315
DAC10A-1-30B/80
DAC20A-1-30B/80
DAC30A-1-30B/80
DAC10A-1-30B/160
DAC20A-1-30B/160
DAC30A-1-30B/160
DAC10A-1-30B/315
DAC20A-1-30B/315
DAC30A-1-30B/315
DAW10A-1-30B/80
DAW20A-1-30B/80
DAW30A-1-30B/80
DAW10A-1-30B/160
DAW20A-1-30B/160
DAW30A-1-30B/160
DAW10A-1-30B/315
DAW20A-1-30B/315
DAW30A-1-30B/315
DA10A-1-30B/80
DA20A-1-30B/80
DA30A-1-30B/80
DA10A-1-30B/160
DA20A-1-30B/160
DA30A-1-30B/160
DA10A-1-30B/315
DA20A-1-30B/315
DA30A-1-30B/315
DAWC10B-1-30B/80
DAWC20B-1-30B/80
DAWC30B-1-30B/80
DAWC10B-1-30B/160
DAWC20B-1-30B/160
DAWC30B-1-30B/160
DAWC10B-1-30B/315
DAWC20B-1-30B/315
DAWC30B-1-30B/315
DAC10B-1-30B/80
DAC20B-1-30B/80
DAC30B-1-30B/80
DAC10B-1-30B/160
DAC20B-1-30B/160
DAC30B-1-30B/160
DAC10B-1-30B/315
DAC20B-1-30B/315
DAC30B-1-30B/315
DAW10B-1-30B/80
DAW20B-1-30B/80
DAW30B-1-30B/80
DAW10B-1-30B/160
DAW20B-1-30B/160
DAW30B-1-30B/160
DAW10B-1-30B/315
DAW20B-1-30B/315
DAW30B-1-30B/315
DA10B-1-30B/80
DA20B-1-30B/80
DA30B-1-30B/80
DA10B-1-30B/160
DA20B-1-30B/160
DA30B-1-30B/160
DA10B-1-30B/315
DA20B-1-30B/315
DA30B-1-30B/315
DAWC10A-2-30B/80
DAWC20A-2-30B/80
DAWC30A-2-30B/80
DAWC10A-2-30B/160
DAWC20A-2-30B/160
DAWC30A-2-30B/160
DAWC10A-2-30B/315
DAWC20A-2-30B/315
DAWC30A-2-30B/315
DAC10A-2-30B/80
DAC20A-2-30B/80
DAC30A-2-30B/80
DAC10A-2-30B/160
DAC20A-2-30B/160
DAC30A-2-30B/160
DAC10A-2-30B/315
DAC20A-2-30B/315
DAC30A-2-30B/315
DAW10A-2-30B/80
DAW20A-2-30B/80
DAW30A-2-30B/80
DAW10A-2-30B/160
DAW20A-2-30B/160
DAW30A-2-30B/160
DAW10A-2-30B/315
DAW20A-2-30B/315
DAW30A-2-30B/315
DA10A-2-30B/80
DR15G-1-30B/315YM
DR20G-1-30B/315YM
DR25G-1-30B/315YM
DR30G-1-30B/315YM
DR10-1-30B/315YM
DR20-1-30B/315YM
DR30-1-30B/315YM
DRC10G-1-30B/315YM
DRC15G-1-30B/315YM
DRC20G-1-30B/315YM
DRC25G-1-30B/315YM
DRC30G-1-30B/315YM
DRC10-1-30B/315YM
DRC20-1-30B/315YM
DRC30-1-30B/315YM
DR10G-2-30B/315YM
DR15G-2-30B/315YM
DR20G-2-30B/315YM
DR25G-2-30B/315YM
DR30G-2-30B/315YM
DR10-2-30B/315YM
DR20-2-30B/315YM
DR30-2-30B/315YM
DRC10G-2-30B/315YM
DRC15G-2-30B/315YM
DRC20G-2-30B/315YM
DRC25G-2-30B/315YM
DRC30G-2-30B/315YM
DRC10-2-30B/315YM
DRC20-2-30B/315YM
DRC30-2-30B/315YM
DR10G-3-30B/315YM
DR15G-3-30B/315YM
DR20G-3-30B/315YM
DR25G-3-30B/315YM
DR30G-3-30B/315YM
DR10-3-30B/315YM
DR20-3-30B/315YM
DR30-3-30B/315YM
DRC10G-3-30B/315YM
DRC15G-3-30B/315YM
DRC20G-3-30B/315YM
DRC25G-3-30B/315YM
DRC30G-3-30B/315YM
DRC10-3-30B/315YM
DRC20-3-30B/315YM
DRC30-3-30B/315YM
DR10G-1-30B/100Y
DR15G-1-30B/100Y
DR20G-1-30B/100Y
DR25G-1-30B/100Y
DR30G-1-30B/100Y
DR10-1-30B/100Y
DR20-1-30B/100Y
DR30-1-30B/100Y
DRC10G-1-30B/100Y
DRC15G-1-30B/100Y
DRC20G-1-30B/100Y
DRC25G-1-30B/100Y
DRC30G-1-30B/100Y
DRC10-1-30B/100Y
DRC20-1-30B/100Y
DRC30-1-30B/100Y
DR10G-2-30B/100Y
DR15G-2-30B/100Y
DR20G-2-30B/100Y
DR25G-2-30B/100Y
DR30G-2-30B/100Y
DR10-2-30B/100Y
DR20-2-30B/100Y
DR30-2-30B/100Y
DRC10G-2-30B/100Y
DRC15G-2-30B/100Y
DRC20G-2-30B/100Y
DRC25G-2-30B/100Y
DRC30G-2-30B/100Y
DRC10-2-30B/100Y
DRC20-2-30B/100Y
DRC30-2-30B/100Y
DR10G-3-30B/100Y
DR15G-3-30B/100Y
DR20G-3-30B/100Y
DR25G-3-30B/100Y
DR30G-3-30B/100Y
DR10-3-30B/100Y
DR20-3-30B/100Y
DR30-3-30B/100Y
DRC10G-3-30B/100Y
DRC15G-3-30B/100Y
DRC20G-3-30B/100Y
DRC25G-3-30B/100Y
DRC30G-3-30B/100Y
DRC10-3-30B/100Y
DRC20-3-30B/100Y
DRC30-3-30B/100Y
DR10G-1-30B/315Y
DR15G-1-30B/315Y
DR20G-1-30B/315Y
DR25G-1-30B/315Y
DR30G-1-30B/315Y
DR10-1-30B/315Y
DR20-1-30B/315Y
DR30-1-30B/315Y
DRC10G-1-30B/315Y
DRC15G-1-30B/315Y
DRC20G-1-30B/315Y
DRC25G-1-30B/315Y
DRC30G-1-30B/315Y
DRC10-1-30B/315Y
DRC20-1-30B/315Y
DRC30-1-30B/315Y
DR10G-2-30B/315Y
DR15G-2-30B/315Y
DR20G-2-30B/315Y
DR25G-2-30B/315Y
DR30G-2-30B/315Y
DR10-2-30B/315Y
DR20-2-30B/315Y
DR30-2-30B/315Y
DRC10G-2-30B/315Y
DRC15G-2-30B/315Y
DRC20G-2-30B/315Y
DRC25G-2-30B/315Y
DRC30G-2-30B/315Y
DRC10-2-30B/315Y
DRC20-2-30B/315Y
DRC30-2-30B/315Y
DR10G-3-30B/315Y
DR15G-3-30B/315Y
DR20G-3-30B/315Y
DR25G-3-30B/315Y
DR30G-3-30B/315Y
DR10-3-30B/315Y
DR20-3-30B/315Y
DR30-3-30B/315Y
DRC10G-3-30B/315Y
DRC15G-3-30B/315Y
DRC20G-3-30B/315Y
DRC25G-3-30B/315Y
DRC30G-3-30B/315Y
DRC10-3-30B/315Y
DRC20-3-30B/315Y
DRC30-3-30B/315Y
DR10G-4-50B/50YM
DR15G-4-50B/50YM
DR20G-4-50B/50YM
DR25G-4-50B/50YM
DR10-4-50B/50YM
DR20-4-50B/50YM
DRC10G-4-50B/50YM
DRC15G-4-50B/50YM
DRC20G-4-50B/50YM
DRC25G-4-50B/50YM
DRC10-4-50B/50YM
DRC20-4-50B/50YM
DR10G-5-50B/50YM
DR15G-5-50B/50YM
DR20G-5-50B/50YM
DR25G-5-50B/50YM
DR10-5-50B/50YM
DR20-5-50B/50YM
DRC10G-5-50B/50YM
DRC15G-5-50B/50YM
DRC20G-5-50B/50YM
DRC25G-5-50B/50YM
DRC10-5-50B/50YM
DRC20-5-50B/50YM
DR10G-6-50B/50YM
DR15G-6-50B/50YM
DR20G-6-50B/50YM
DR25G-6-50B/50YM
DR10-6-50B/50YM
DR20-6-50B/50YM
DRC10G-6-50B/50YM
DRC15G-6-50B/50YM
DRC20G-6-50B/50YM
DRC25G-6-50B/50YM
DRC10-6-50B/50YM
DRC20-6-50B/50YM
DR10G-7-50B/50YM
DR15G-7-50B/50YM
DR20G-7-50B/50YM
DR25G-7-50B/50YM
DR10-7-50B/50YM
DR20-7-50B/50YM
DRC10G-7-50B/50YM
DRC15G-7-50B/50YM
DRC20G-7-50B/50YM
DRC25G-7-50B/50YM
DRC10-7-50B/50YM
DRC20-7-50B/50YM
DR10G-4-50B/100YM
DR15G-4-50B/100YM
DR20G-4-50B/100YM
DR25G-4-50B/100YM
DR10-4-50B/100YM
DR20-4-50B/100YM
DRC10G-4-50B/100YM
DRC15G-4-50B/100YM
DRC20G-4-50B/100YM
DRC25G-4-50B/100YM
DRC10-4-50B/100YM
DRC20-4-50B/100YM
DR10G-5-50B/100YM
DR15G-5-50B/100YM
DR20G-5-50B/100YM
DR25G-5-50B/100YM
DR10-5-50B/100YM
DR20-5-50B/100YM
DRC10G-5-50B/100YM
DRC15G-5-50B/100YM
DRC20G-5-50B/100YM
DRC25G-5-50B/100YM
DRC10-5-50B/100YM
DRC20-5-50B/100YM
DR10G-6-50B/100YM
DR15G-6-50B/100YM
DR20G-6-50B/100YM
DR25G-6-50B/100YM
DR10-6-50B/100YM
DR20-6-50B/100YM
DRC10G-6-50B/100YM
DRC15G-6-50B/100YM
DRC20G-6-50B/100YM
DRC25G-6-50B/100YM
DRC10-6-50B/100YM
DRC20-6-50B/100YM
DR10G-7-50B/100YM
DR15G-7-50B/100YM
DR20G-7-50B/100YM
DR25G-7-50B/100YM
DR10-7-50B/100YM
DR20-7-50B/100YM
DRC10G-7-50B/100YM
DRC15G-7-50B/100YM
DRC20G-7-50B/100YM
DRC25G-7-50B/100YM
DRC10-7-50B/100YM
DRC20-7-50B/100YM
DR10G-4-50B/200YM
DR15G-4-50B/200YM
DR20G-4-50B/200YM
DR25G-4-50B/200YM
DR10-4-50B/200YM
DR20-4-50B/200YM
DRC10G-4-50B/200YM
DRC15G-4-50B/200YM
DRC20G-4-50B/200YM
DRC25G-4-50B/200YM
DRC10-4-50B/200YM
DRC20-4-50B/200YM
DR10G-5-50B/200YM
DR15G-5-50B/200YM
DR20G-5-50B/200YM
DR25G-5-50B/200YM
DR10-5-50B/200YM
DR20-5-50B/200YM
DRC10G-5-50B/200YM
DRC15G-5-50B/200YM
DRC20G-5-50B/200YM
DRC25G-5-50B/200YM
DRC10-5-50B/200YM
DRC20-5-50B/200YM
DR10G-6-50B/200YM
DR15G-6-50B/200YM
DR20G-6-50B/200YM
DR25G-6-50B/200YM
DR10-6-50B/200YM
DR20-6-50B/200YM
DRC10G-6-50B/200YM
DRC15G-6-50B/200YM
DRC20G-6-50B/200YM
DRC25G-6-50B/200YM
DRC10-6-50B/200YM
DRC20-6-50B/200YM
DR10G-7-50B/200YM
DR15G-7-50B/200YM
DR20G-7-50B/200YM
DR25G-7-50B/200YM
DR10-7-50B/200YM
DR20-7-50B/200YM
DRC10G-7-50B/200YM
DRC15G-7-50B/200YM
DRC20G-7-50B/200YM
DRC25G-7-50B/200YM
DRC10-7-50B/200YM
DRC20-7-50B/200YM
DR10G-4-50B/315YM
DR15G-4-50B/315YM
DR20G-4-50B/315YM
DR25G-4-50B/315YM
DR10-4-50B/315YM
DR20-4-50B/315YM
DRC10G-4-50B/315YM
DRC15G-4-50B/315YM
DRC20G-4-50B/315YM
DRC25G-4-50B/315YM
DRC10-4-50B/315YM
DRC20-4-50B/315YM
DR10G-5-50B/315YM
DR15G-5-50B/315YM
DR20G-5-50B/315YM
DR25G-5-50B/315YM
DR10-5-50B/315YM
DR20-5-50B/315YM
DRC10G-5-50B/315YM
DRC15G-5-50B/315YM
DRC20G-5-50B/315YM
DRC25G-5-50B/315YM
DRC10-5-50B/315YM
DRC20-5-50B/315YM
DR10G-6-50B/315YM
DR15G-6-50B/315YM
DR20G-6-50B/315YM
DR25G-6-50B/315YM
DR10-6-50B/315YM
DR20-6-50B/315YM
DRC10G-6-50B/315YM
DRC15G-6-50B/315YM
DRC20G-6-50B/315YM
DRC25G-6-50B/315YM
DRC10-6-50B/315YM
DRC20-6-50B/315YM
DR10G-7-50B/315YM
DR15G-7-50B/315YM
DR20G-7-50B/315YM
DR25G-7-50B/315YM
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