Factory production of Yellow River water drain valve for automobile storage cylinder & nbsp; supporting, but also can be used for supporting the same specifications, the specifications for 3 / 8 of the outer screw thread. Only for the use of water and gas, such as the use of other specific substances, it is recommended to contact me before purchasing. At the same time, the factory can also be customized according to customer requirements of other copper, iron, aluminum, stainless steel, stainless steel and other materials, such as metal parts. Please and I contact: QQ:1007267708, mobile phone: 13216855732, phone / Fax: 0575-87651982