(��î May sixth days), June 10, 1951, the national promotion Hao Work Act.

1951, the state-run sixth cotton mill spun yarn value car worker in Qingdao Hao, to create a more scientific Spinning Work Act. Its characteristics are: take the initiative to work regularly; work plan, prioritize; work cross combination carried out; attention to cleaning work. Due to active master machine performance, reduce the spun yarn breakage, and shorten the duration of decapitation, roller flowering rate the cotton rate reached 0.25% of the national records, the value of the car capacity (20 yarn) gradually from 300 increased to 600.
To this end, the National Committee of Chinese textile unions established in Qingdao Hao Work Act will ", carried out a systematic and comprehensive measurement and summarize, promotion and first eight textile factory in Qingdao. Only three months of Statistics, Qingdao roller spend an average reduction of 51.7%, the spun yarn number of spindles increased by about 1/3.