liuxinzhuang Cangzhou, Hebei
CangZhou LongYu Petroleum Machinery Equipment Co.,ltd was founded in 2005,specialized manufacturing and developing Liners,Solids Control Drilling mud pump accessories,Audited Supplier of CNPC,with QMSC GB/T 19001-2008 idt ISO 9001:2008.LongYu ...
liner, pump parts, cylinder sleeve