Import. Meets following Specifications: Alloy No. C23000 per ASTM B43, ANSI/ASME B1.20.1, WW-N-351 Federal Specifications, MS51846 Military standard. California AB 1953. Vermont SB152. Directive 2002/95/EC-ROHS. Thanks for shopping Hipp Hardware Plus's Online Store for all your DIY and Home Improvement needs. Remember Hipps Help!