乡镇工业,早在农业合作化时期,称为“五小工业”。党的十一届三中全会后,随着改革、开放深入发展,一些采石、矿山、水泥、砖瓦生产等乡镇工业迅速兴起,生产规模不断扩大,接尘人数日趋增多。由干乡镇工业主要靠自力更生,土法上马,就地取材,因陋就简所建成,多数厂矿生产设备落后,防尘设备 Township industries, as early as the period of agricultural cooperation, known as the “five small industries.” After the Third Plenary Session of the Eleventh Central Committee of the Party, with the reform, opening up and in-depth development, some township industries such as quarrying, mining, cement and tile production have rapidly risen, the scale of production has been constantly expanded, and the number of people receiving dust has been on the increase. Mainly by the dry township industrial self-reliance, native law launched, local materials, due to simple built, the majority of factories and mines production equipment behind, dust-proof equipment