供应PFEIFFER普发涡轮分子泵配件董小姐18929565189***:2683002046TPH/U050TPH/U060TPH/U062TPH/U170TPH/U330TPH/U510TMH/U71TPH/U261TMH/U261TMH/U521TPH/U521TPH/U1201TPH/U1501TPH1800TPH/U2300)