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MUD PUMP DRILLING RIGS Valve box crosshead valve ass crosshead extension rod piston
Valve rod guide lower and upper crosshead guide = valve guide diaphragm stuffing box ,piston rod clamp, dual liner ,=bi-metal liner connector typed safety valve ,relief valve, shear safety valve ,piston bolt - nut,piston rod , fixing clamp, lock spring ,liner locking ring, liner flange¸×Ì×·¨À¼. Cylinder head flange ¸×¸Ç·¨À¼£¬liner, cylinder head, flange type safety valve ,valve base, valve spring , cylinder head plug,to |
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