An sanya hannu kan layin jan karfe mai nauyin tan 1300 tare da abokan cinikin Shandong

A ƙarshen watan Mayu na 2017, mun sanya hannu kan kwangilar samar da layin samar da kariya ga muhalli tare da abokan cinikin Shandong: 16 * 3 * 4m, ƙarfin zinc tan 1300;