1" full size spray metal coupling

Basic materials: Steel alloy 40Cr ( AISI 5140, HRA 56-62);
API SPEC 11B specification manufacture;
I.D.: 1 3/8” (34.93mm)
O.D.: 2 3/16(55.56mm)
Length: 4”(101.3mm)
Weight: 1.13kg
Casted alloy layer process on the surface has the function of wear-proof, corrosion-resisting and reducing the friction, protect both the coupling and the rods
Package: wooden case

1" full size spray metal coupling