Kev txhim kho keeb kwm ntawm lub tshuab nqus tsev ntim tshuab

Thawj lub sijhawm txhim kho yog los ntawm xyoo 1950 mus rau nruab nrab -1980s, uas tau pib nrog kev tsim cov tshuab cua tshuab yooj yim. Nyob rau lub sijhawm ntawd, muaj tsawg dua 20 lub tuam txhab tsim cov khoom siv nqus tsev hauv lub tebchaws, thiab lawv cov khoom lag luam feem ntau yog nruab nrab mus rau qis-kawg cov khoom siv nqus tsev vacuum, xws li iav-txheej txheej tshuab thiab cov tshuab ntim luam yeeb. Los ntawm lig 1980s mus rau tag nrho 1990s, nws yog lub sij hawm thib ob ntawm kev loj hlob ntawm Tuam Tshoj lub tshuab nqus tsev lag luam. Lub sijhawm no, cov tuam txhab tsim khoom tau nce mus txog ze li 3,000, ua haujlwm 35,{11}} tus neeg. Tom qab "Seventh Five-Year Plan" thiab "Eighth Five-Year Plan" thev naus laus zis hloov pauv, tag nrho theem ntawm kev lag luam nqus tsev vacuum tau txhim kho zoo heev. Nyob rau hauv cov nqe lus ntawm kev ua, cov khoom siv ntau lawm xws li machining center CNC tshuab cov cuab yeej thiab resin xuab zeb castings tau pib muab kev lag luam. Los ntawm xyoo 1996, tau tsav los ntawm kev lag luam magnesium smelting, lub tshuab nqus tsev tsim tau sai heev.