state-owned enterprises. According to the network information query, in 1988, Zaozhuang Guomian No.4 Factory was a state enterprise and the fourth cotton mill, which is also the origin of Guomian No.4 Factory. In 1971, the weaving workshop was rebuilt and renamed as the fourth cotton mill. In October, 1988, Jinan No.4 cotton mill produced the brand J19.4TEX.