国产亚洲欧美日韩俺去了,人妻无码久久精品,亚洲人成影院在线观看,亚洲AV永久无码精品表情包

德國Vacuubrand?
德國Vacuubrand公司是德國著(zhù)名的真空泵 生產(chǎn)廠(chǎng)家.主要生產(chǎn)無(wú)油化學(xué)隔膜泵,油封旋葉泵,化學(xué)雜交泵,變頻泵,及以以上泵為主泵,配備溶劑回收瓶,真空壓力表,真空控制器等附件組成的真空泵系統和數字式真空壓力表,真空控制器,真空閥門(mén)等配件,其真空度范圍為1000-10-3mbar.廣泛應用于科研院所等機構的化學(xué),藥物實(shí)驗室以及制藥,化學(xué),化工,電子等行業(yè)
The VACUUBRAND activities were started in 1961 as a department of RUDOLF BRAND GMBH + CO in Wertheim, Germany. In 1985, VACUUBRAND GMBH + CO KG was established as a separate legal entity.
?