Overview: The document provides a detailed list of standard sizes for rectangular, round, and square grades of materials, specifically GJL250, GJS400, GJS500, and GJS600. These materials are likely types of cast iron or similar alloys used in various industrial applications.

Rectangular Grades: The document lists dimensions for rectangular grades, indicating which material grades are available for each size. For example, dimensions like 45x25, 50x30, and 60x40 are available in GJL250, while others like 50x40 and 60x50 are available in both GJL250 and GJS400.

Round Grades: Similar to the rectangular grades, round dimensions are provided with corresponding material grades. Sizes range from Ø21 to Ø703, with various grades available for each size. For instance, Ø31 is available in GJL250, GJS400, and GJS500, while Ø260 is available in GJL250 and GJS400.

Square Grades: The document also includes dimensions for square grades, with sizes ranging from 35x35 to 710x710. Each size is marked with the available material grades, such as 35x35 available in GJL250 and GJS400, and 170x170 available in GJL250, GJS400, and GJS500.

Key Information: The document highlights the availability of different material grades for each dimension, which is crucial for selecting the appropriate material for specific industrial applications. The presence of multiple grades for certain dimensions suggests flexibility in material choice based on mechanical properties or cost considerations.

Contact Information: The document is provided by Bernareggi Srl, with contact details including an address in Castano Primo, MI, Italy, a website, and an email address for further inquiries.