Mithras Glass Hardware (Zimmor Hardware) Is A Frameless Shower Hardware Manufacturer That Has Been Focusing On High Quality Products Since 1999 And Exporting Them All Over The World. The Entire Factory Uses ERP, Large Machining Centers, And CNC Machine Tools For Management And Comprehensive Quality Control To Provide Customers With High-Quality Products And Services.shower hardware, glass entrance systems, interior glass hardware, and glass railing systems -but we have everything else a glazing contractor needs. From door and window hardware to professional-grade glazing tools, CRL makes it easy for you to get the architectural hardware and glazing supplies you need to get the job done right.