Manufacturers Weck Glass Block/Seves Glass Block Share Email Article Share on LinkedIn Share on X Share on Facebook Weck Glass Block/Seves Glass Block Locations & Contacts 450 E. Congress Pkwy., Ste. E Crystal Lake, IL, 60014-6266 Visit Website Click Here Content is not available. Report Inaccuracies See something wrong? If there’s an error on this page, please let us know. Report Report inaccuracies for Weck Glass Block/Seves Glass Block page Optional description of the form for additional information. * Required information Email: Description: * Cancle Submit