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About products and suppliers:
Alibaba.com offers 107756 12mm glass products. About 17% % of these are building glass, 1%% are shower doors, and 1%% are loose gemstone. 

A wide variety of 12mm glass  options are available to you,  such as float glass, sheet glass and glass block.

There are 107781 12mm glass suppliers, mainly located in Asia. , and