Kald Int'l Industry Limited is one of the leading China male and female adaptor manufacturers and suppliers,Website:http://www.kaldint.net, and also a professional company and factory, welcome to buy low price and high-quality male and female adaptor and wholesale our good products.Product: Male and Female AdaptorDescription: * Material: Steel* Finishes: Hot dip galvanized* Size: 20mm to 3/4" , 3/4" to 20mm , 25mm to 1" , 1" to 25mm