Place of Origin: Hunan, China Brand Name: germanium Model Number: 5N - 6N
we can long term supply the germanium ingot , germanium powder and germanium oxide .
the content : 5N - 6N
dear good day if you interest in the germanium ingot please contact me , it's my honor to cooperate with you . thank you for your inquiry . goods name : germanium ingot shape : ingot coulor : black- gray Ge % ?% Foreign Mat. ?
