Chinese constitution why no provisions of the freedom to strike

China's 1954 "constitution" no provision about the strike. In November 15, 1956, Mao Zedong put forward: "to allow the workers to go on strike, allowing the mass demonstrations. Demonstration is based in the constitution. After the revision of the constitution, I advocate a freedom to strike, to allow the workers to go on strike. So, to help resolve the contradiction between countries, factory and the masses." In 1975 the "constitution" stipulates the citizen has the freedom to strike. In 1978 the "constitution" also stipulates that citizens have the freedom to strike. 75 "constitution" and "constitution" the freedom to strike 78, due to the limitations of the times and the special historical reasons, the free power of this series are distorted, leading to consequences of political movement strike and divorced from actual life, make the society more unrest. After the cultural revolution, the social and political situation had improved, and the freedom to strike is not, "1982 constitution" will strike freedom cancelled. At that time, the famous jurist Zhang Youyu explained that "freedom to strike" is the product of the ultra left thought. After 1982, after several amendments to the end of 2004, the constitution of our country have not recovered stipulate the right of freedom.
Previously, it is said that our republic led by the working class, are the masters of the country, of course, do not need to strike, the theory also may not strike