based on AH-1, 52 calibers with longer range, towed FGT-203 Experimental 203 mm towed howitzer. Based on PLL-01, this artillery system was developed by Norinco in cooperation with Space Research International of Belgium. PLZ-45 Export, self-propelled version introduced in 1997 PLZ-05 Domestic production, self-propelled version introduced in 2005 SH-1 Export, truck-mounted version introduced in 2002 References Artillery of the People's Republic of China Artillery of Iran Artillery of Iraq