Rust-proofing treatment method for cylindrical member

Abstract

A rust-proofing treatment method for a cylindrical member, includes forming a first end at one end of the cylindrical member to seal the one end; inserting a rust-proofing material including a scattering-suppressing material, a volatile rust-proofing agent covered with the scattering-suppressing material, and a holding sheet configured to hold the volatile rust-proofing agent into the cylindrical member; forming a second end at an end of the cylindrical member opposite to the first end to seal the end after the rust-proofing material is accommodated in the cylindrical member; and vaporizing the volatile rust-proofing agent.

Dependencies are inferred from the claim text.