Product Name: Galvanized Quick-Fit End Cap
Type: Quick Fit End Cap
Material: Carbon Steel (CS)
Pipe Size: For 12 Inch Pipe (OD 323.8 mm)
Wall Thickness: 10.31 mm
Coating: Galvanized
Feature: with Bird Screen and Accessories Set

Source: https://www.landee.cn/galvanized-end-caps-carbon-steel-12-inches-wt-10-31-mm.html