Site na ọgwụgwọ mmiri mmiri passivation ojii (c2D) nwere nnu ọlaọcha ma ọ bụ nnu ọla kọpa, a na-emepụta ihe nkiri passivation ojii nwere ọkpụrụkpụ nke ihe dịka 10-15μm. Ọnụ ego ahụ dị elu ma ọdịdị ahụ pụrụ iche.

Jiri zinc passivation nwere agba (c2C), mkpuchi mkpuchi 8-15μm, nnwale ịgba nnu nwere ike iru karịa awa 72, ọdịdị mara mma, arụmọrụ mgbochi corrosion ka mma.

GB / T 882-2008 "Pin" ọkọlọtọ, nominal dayameta 3-100mm, ihe na-agụnye carbon ígwè, igwe anaghị agba nchara, wdg, electrogalvanized oyi akwa ọkpụrụkpụ 5-12μm, n'ahịrị na c1B ma ọ bụ c1A post-ọgwụgwọ chọrọ.

A na-anabata usoro ngafe zinc agba (c2C), ọkpụrụkpụ mkpuchi bụ 8-15μm, na nguzogide corrosion nke nnwale ịgba nnu karịrị awa 72, nke nwere ma mgbochi corrosion na ịchọ mma.

Ọ mejupụtara bolts countersunk, ọkpọkọ mgbasawanye, igwe na-asa akwa, igwe mmiri mmiri na mkpụrụ hexagonal. The ihe bụ ukwuu n'ime carbon ígwè (dị ka Q235), na ọkpụrụkpụ nke electrogalvanized oyi akwa bụ 5-12μm, nke zutere ISO 1461 ma ọ bụ GB/T 13912-2002 ụkpụrụ.

A na-eme passivation nke egwurugwu chromate (c2C) na ndabere nke electrogalvanizing iji mepụta ihe nkiri passivation nwere agba nwere ọkpụrụkpụ nke ihe dịka 8-15μm. Nnwale ịgba nnu nwere ike ịdịru ihe karịrị awa 72 na-enweghị nchara ọcha.

Emere nke Q235 carbon ígwè na ihe ndị ọzọ, elu bụ electro-galvanized, na mkpuchi ọkpụrụkpụ na-emekarị 5-12μm, nke na-ezute post-ọgwụgwọ chọrọ nke c1B (blue-white zinc) ma ọ bụ c1A (zinc na-egbuke egbuke) na GB / T 13911-92 ọkọlọtọ.