DF11GZ-12DP DF11GZ-12DP-2V(20) DF11GZ-14DP-2V(20) df11gz-16dp-2v DF11GZ-16DP-2V(20) DF11GZ-18DP-2V(20) DF11GZ-20DP-2V DF11GZ-20DP-2V(20) DF11GZ-22DP-2V(20) DF11GZ-24DP-2V(20)