Bishii Maajo 2021, Wasiirka Wang Zhigang oo ka tirsan Wasaaradda Sayniska iyo Tignoolajiyada ee Jamhuuriyadda Shiinaha ayaa si gaar ah u aaday rugta Suzhou Jinjiang Copper Co., Ltd. conductivity elektarooniga ah silig daawaha copper iyo mashruuca bireed!