Double Chrome Plating Pump Plunger Description:
The technology for the plungers: Besides the Spray Metal Plunger, there also is the chrome plated plungers. Chrome plating technology has normal chrome plating and the double chrome plating.
API code for the different plungers: 1045 steel spraying (B1), 1045 steel spraying (B2), 1045 steel chrome plating (A1), 1045 steel double
chrome plating (A2).
