张力减径机 meaning in English

stretch reducing mill
stretch-reducing mill
tension reducing mill

With double travelling cranes , advanced 60mm punching machine , 140mm fungus type punching machine ; domestic leading 159mma r tube rolling - mills , 159mm7 rack calibrator ; the national monopoly product micro tension - reducing diameter machinery and the producer gas generator ; 40 , 60 , 80 , 220mm straightening machine ; 5 40 tons motoblocs ; bottom rolling type continual annealing furnace ; 14m pitch type heating furnace as well as qg1118 highly effective pipe cutter and so on as well as correlated necessary facility
公司据有双配行车的大型厂房17500平方米，先进的60mm穿孔机， 140mm菌式穿孔机国内领先的159mmar轧管机， 159mm7机架定径机国家专利产品微张力减径机和煤气发生炉40 60 80 220mm矫直机540吨拉拔机滚底式连续退火炉14m斜坡式加热炉以及qg1118高效切管机等以及相关配套设施。