Qingdao Kehua Petroleum Machinery Co, Ltd.

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1. pump liner

(1) Heat-treated and internally hardened for high durability ; available in various materials to meet a wide range of applications ;
Made from the premium alloy steel AISI8620 or 4135 , with thermal refining treatment ,rigid inspection ...

2. Piston Hub

Kehua 's piston hubs are manufactured from AISI 5140 heat-treated forged alloy steel machined on modern CNC lathes to exact dimensions.They meet all API tolerances and different temperature applications.They are available in size 3" to ...

3. Valves & Seats

High performance valves and seats are available from HongYang with the following features:
Forged alloy steel AISI 4119 construction
Heavy-duty valve design
Deep carburized wear surfaces
Heavy-duty durable retainer threads
Precise machined ...

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