Place of Origin: Guangdong, China (Mainland) Brand Name: chuanghe Model Number: CH-SP20 material: stainless steel, CarbonSteel , Brass , Bronze , Aluminum , Aluminum Al finish: zinc plated,plain color: black and white Packing: small box or bulk packing style: normal,weld ,special application: connector Standard: DIN,JIS,ANSI,GB,BS,ISO http://www.china-seiko.com