上(Shang)一(Yi)篇(Pian):(?)气(Qi)动(Dong)刀(Dao)闸(Zha)阀(Fa)PZ673Y-16C,(?)DN250((?)介(Jie)质(Zhi)灰(Hui)渣(Zha)混(Hun)合(He)物(Wu))(?) / 下(Xia)一(Yi)篇(Pian):(?)电(Dian)动(Dong)刀(Dao)闸(Zha)阀(Fa)DMZ973X-10Q DN200泥(Ni)浆(Jiang)、(?)空(Kong)气(Qi)、(?)渣(Zha)水(Shui)混(Hun)合(He)物(Wu)