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中国粉体网
10 个月
GX螺旋输送机
螺旋机本体由头节、中间节、尾节三种组成。螺旋面的形式有实体螺旋(S制法)和带式螺旋(D制法)两种。各螺旋轴之间采用花键联接,且保证花键轴的互换性,便于维修,中间轴承座轴承一种采用PM材料,具有极高的自润滑性和耐磨性,中间轴和轴套采用超 ...
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今日热点
Hughes Fire prompts evacs
Senate advances nomination
Confirmed as CIA director
Judge halts executive order
100K+ ducks to be killed
Slander conviction upheld
Orders release of secret docs
Security breach at US Capitol
Sentenced to over 50 years
Halftime show special guest
Corpse flower draws crowd
Announces return to skiing
NYC aesthetician charged
Houston refinery closure
Thai same-sex marriage law
CNN announcing layoffs
Recalling over 270K vehicles
San Antonio officers shot
Mulls SC governor’s bid
'Bling Empire' star dies
New panel to probe Jan. 6
Launches bid for governor
Defends diversity policies
Former NC judge dies
ACLU sues over deportations
Exits Quebec operations
Picked as ambassador to EU
ICC targets Taliban leaders
To visit Central America
Keys upsets Swiatek
Jobless claims rise slightly
Commandments law in court
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