Perforated hlau ntawvtau nyob ib ncig ntawm ze li ntawm 150 xyoo thiab tau pib tsim los ua cov lim dej thiab cov sorters, feem ntau rau kev lag luam mining.
Qhov tseeb tau ua pov thawj tias nrog kev txhim kho ntawm kev tshawb fawb thiab thev naus laus zis, kev sivperforated hlau vaj huam sib luagnrawm nrawm dhau nws qhov kev ua haujlwm qub, thiab kev txhim kho tau siv dav hauv architecture, toj roob hauv pes, thiab tsim sab hauv.
Qhov loj thiab qauv ntawm lub qhovperforated hlau ntawvtuaj yeem ua tib zoo ua tiav thiab tsim raws li qhov xav tau.Cov qhov sib txawv ntawm qhov ntau thiab tsawg, qhov ntom ntom thiab cov duab sib txawv ua kom pom cov duab sib txawv.
Cov qauv ntawm lub qhov punchingperforated hlau vaj huam sib luag:
Rectangular qhov, square qhov, pob zeb diamond qhov, round qhov, ntev round qhov,
Hexagonal qhov, hla qhov, daim duab peb sab qhov, ntev duav qhov, plum blossom qhov,
Ntses nplai qhov, qauv qhov, cim net, herringbone qhov, pentagram qhov,
Cov qhov tsis sib xws, nruas qhov, qhov tshwj xeeb zoo li lub qhov, qhov louver, thiab lwm yam.
Post lub sij hawm: Jan-15-2023