High Residual Resistivity Ratio (RRR), annealed niobium rod, disk, reactor grade niobium plate Shenzhen Sunrise Metal Industry Co.,Ltd

High Residual Resistivity Ratio (RRR), annealed niobium rod, disk, 
reactor grade niobium plate  Shenzhen Sunrise Metal Industry Co.,Ltd  0086-0755-27185042

skype :Li.mary9

0086-15919982500

QQ : 1957953030

http://www.sunriseta.commary@sunriseta.com