Technical Specification

This is an America client, who uses Owens Corning ASJ Fiberglass wool pipe for past years. He is strict with the quality, but is satisfied with our quality, especially with the 1/2”(13mm) thickness pipe shell.

Normally we have GB standard and ASTM standard quality. (Most of Chinese factories only produce GB standard). Check below picture you can see the difference. North Amercian countries(United States and Canada), Austria and New Zealand ask for ASTM standard quality more offten than other coutries. GB standard is more affordable, ASTM standard is more fine.

ASTM standard:

GB standard:

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