PRODUCT GUIDE Hardware Rocky Mountain Hardware makes bronze hardware containing a minimum of 90% post-consumer recycled content, certified by SCS. Photo: Rocky Mountain Hardware Behind the recommendations Related articles Behind the recommendations Related articles Hardware BuildingGreen approves hardware that uses post-consumer recycled metal content beyond what is standard in the industry. More about Hardware Putting Key-Card Entry Systems on an Energy Diet Not Green Enough: Six Products GreenSpec Rejected and Why Eleek: Lighting That's Eco-Friendly Even When It's Off Chromium-6: Health and Life-Cycle Hazards Chrome-plated and stainless-steel products may not expose us directly to the hazards of hexavalent chromium, but their life cycle releases it into the environment. Getting “Conflict Minerals” Out of Our Products While “blood diamonds” get attention, mining of metals like tin and tungsten helps finance civil wars. Here’s a look at the movement to change that.