oil drilling Emsco mud pump valve ass.
Product Description
Our valves body and seat are made from alloy steel forgings and alloy steel precision castings. After carbonizing and quenching, the hardness reach HRC58-62 and have high accuracy. Our products are widely used in drilling, workover and fracturing. Variety complete, long service life
The valve body and four-wing meet with friction welding into a whole, strong and durable
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