... aluminum alloy manufacturing 2.made of rubber material 3.high purity graphite 4. ... loop Using aluminum alloy manufacturing ,made of rubber material, Zhongnan Machinery specializes in producing aluminum ... Co., Ltd4,Zhejiang Zhongya Aluminium Co., Ltd5,Luoyang Wanji Special Aluminium Alloy Co., Ltd6,Zhejiang Dingfeng Aluminum Co., Ltd7,Wujiang Longma Aluminum Co., Ltd8,Interthai Manufacturing Co., Ltd ...