Zhenyu valve nut 2 

 http://www.wzzhenyu.com/1023.htm 
 Recommended products: stem nut http://www.wzzhenyu.com/ 
 Related recommendations: 
 Block card http://www.bontar.com/ 
 Gear Cutting http://www.wzsmcl.com/ 
 PTFE gasket http://www1.wzshunguo.com 
 Fiber to the home box http://www.htqs.net/ 
 Stainless steel tube http://www.yonyao.com/ 
 Series: brass valve nut http://www.wzzhenyu.com/Valve-Nut.htm