# GME30.11 - Finish ALSECO-ALCOA 28mm — Packaging specification equivalence: neck finishes, corrugated grades and pallet standards For GME30.11 - Finish ALSECO-ALCOA 28mm, specification type is neck_finish; description is Dimensions of the 28-millimetre ALSECO-ALCOA screw finish for glass containers. This finish is very close to the MCA series; primary dimension is 28 mm diameter; equivalence or compatibility note is This finish is very close to the MCA series (See GME 32.00 - MCA FINISHES), recorded from its source on 2026-08-12. - **Specification ID:** GME30.11 - Finish ALSECO-ALCOA 28mm _(verified: appears in the quote below)_ - **Specification type:** neck_finish _(our reading, not quoted from the source)_ - **Description:** Dimensions of the 28-millimetre ALSECO-ALCOA screw finish for glass containers. This finish is very close to the MCA series. _(verified: appears in the quote below)_ - **Primary dimension:** 28 mm diameter - **Equivalence or compatibility note:** This finish is very close to the MCA series (See GME 32.00 - MCA FINISHES) _(verified: appears in the quote below)_ ## What the source says > See detail GME30.11 - Finish ALSECO-ALCOA 28mm 01/01/2000 - Latest update 13/07/2022 This data sheet specifies the dimensions of the 28-millimetre ALSECO-ALCOA screw finish for glass containers. This finish is very close to the MCA series (See GME 32.00 - MCA FINISHES). ## Source - https://www.cetie.org/en/finish-data-sheets-gme_102.html Last verified: 2026-08-12. Review by: 2028-08-11. Part of [Packaging specification equivalence: neck finishes, corrugated grades and pallet standards](https://referencesource.org/packaging-material-specification-equivalence/).