Original sentence: - A number captured from VPA.- Small numbers until 1980s.Because of this the Type 63 wasn't an effective weapon against fast moving, low flying aircraft.Despite its shortcomings, Type 63 was also supplied to the North Vietnam during the Vietnam War.However the Type 63 was a severely limited weapon.However, even with its faults it remained in service with the PLA until the late 1980s.It wasn't radar-guided and thus the guns had to be aimed manually.Nevertheless, it was found to be a superb ground support vehicle, due to its rate of fire.The People's Liberation Army made little use of Type 63, only having a small number available.The Type 63 is a Chinese self-propelled anti-aircraft gun based on Type 58 medium tank (Chinese copy of the Soviet T-34/85).Type 63 retains the hull from Type 58 but the turret was replaced by an open-top box turret armed with with twin Type 63 37mm anti-aircraft guns
Edited sentence: - A number captured from the VPA.- Small numbers until the 1980s.Because of this the Type 63 was ineffective against fast moving, low flying aircraft.Despite its shortcomings, the Type 63 was also supplied to North Vietnam during the Vietnam War.Even with its faults it remained in service with the PLA until the late 1980s.However, the Type 63 was severely limited.It was not radar-guided and thus the guns had to be aimed manually.Nevertheless, due to its rate of fire, it was found to be an effective ground support weapon.The People's Liberation Army (PLA), made little use of the Type 63, only having a small number available.The Type 63 is a Chinese self-propelled anti-aircraft gun based on the Type 58 medium tank (itself a Chinese copy of the Soviet T-34/85).The Type 63 retains the hull from the Type 58 but the turret was replaced by an open-top box turret armed with with twin Type 63 37mm anti-aircraft guns