The fit clearance between pump barrel and plunger is very important. After metal spraying and grinding process, its surface roughness can reach 0.4 RA, which can effectively reduce the abrasion and prolong the life of pump barrel and plunger.
We can provide External and Internal thread plunger, Grooved plunger and Pressure actuated plunger.
Contact: Jack Chen
Phone: +86-536-5229620
E-mail: sale01@sinohuanuo.com
Add: North of Mihe Road, Shouguang, 262700, China