求翻译：1972年建设了焙烧、冶炼生产线，1992年焙烧生产线停运拆除，1998年工厂致力于环境保护。产品为70牌号钼铁。工厂员工60～70人，生产线每班有10人作业，实行两班制。是什么意思？

In 1972 the construction of the roasting, smelting production line, production line shutdown in 1992, roasting removed in 1998, the factory is committed to environmental protection. 70 grade molybdenum products. Factory workers 60 to 70 people, 10 people per class production line operating, double s

In 1972 the building in 1992, roasting, smelleding production line stopped baking production lines, 1998 removed factory is committed to environmental protection. ferro molybdenum products are 70 brands. factory workers 60 to 70 people per class, and the line of production, there are 10 people worki

In 1972 constructed the roasting, has smelted the production line, in 1992 roasted the production line to suspend shipment the demolition, in 1998 the factory devoted to the environmental protection.The product is 70 trademark ferromolybdenums.The factory staff 60~70 people, production line each cla

1972 the construction of the roasting, smelting production line, 1992 roasting production line outage removed 1998 factory is committed to environmental protection. Product 70 grade molybdenum iron. The factory employs 60~70 people, line 10 people per class jobs, two shifts.

Built and roasted, smelted the production line in 1972, roasted the production line and stopped transport to remove in 1992, the factory devoted to the environmental protection in 1998. The products are 70 designation molybdenum irons. Factory 60-70 employees, the per tour of production line has 10