1960s, the first generation of unified product design, the volume of supplies to reduce 1/3-1/2, life expectancy increased by 2-3 times, the m...
1960, isizukulwane sokuqala esihlanganisiwe umklamo womkhiqizo, ivolumu izimpahla kuncishiswe 1 / 3-1 / 2, ubude bempilo kukhuphuke ngo izikhathi 2-3, m ...Funda kabanzi "