Dongguan Enuo pwm Co., Ltd yog ib lub koom haum ntawm Hong Kong BHD Group, yas pwm tsim thiab kev tsim khoom yog lawv cov lag luam tseem ceeb.Tsis tas li ntawd, hlau qhov chaw CNC machining, qauv khoom R & D, tshuaj xyuas fixture / Gauge R&D, yas khoom molding, txau thiab sib dhos kuj tseem koom nrog.
Kev lag luam machinery tuaj rau hauv lub neej thaum lub sij hawm Industrial Revolution.Cov tuam txhab lag luam hauv qhov kev tawm tshiab no tau loj hlob los ntawm cov hlau foundries, shipyards, forges thiab kho khw.Feem ntau cov tuam txhab lag luam yog ib qho kev sib txuas ntawm lub tshuab ua haujlwm thiab chaw ua haujlwm nkoj.Thaum ntxov nyob rau hauv lub xyoo pua 20th ob peb maus taus thiab tsheb manufacturers pib lawv tus kheej tshuab factories.Ua ntej kev lag luam kiv puag ncig muaj ntau lub tshuab muaj xws li moos, riam phom thiab cov cuab yeej khiav rau mills (watermill, windmill, nees zeb thiab lwm yam.) Kev tsim cov tshuab no nyob rau ntau qhov me me hauv kev cob qhia kws ua haujlwm feem ntau rau lub khw hauv zos lossis cheeb tsam.Nrog rau qhov tshwm sim ntawm kev lag luam kiv puag ncig tsim khoom pib ntawm cov cuab yeej sib xyaw nrog ntau txoj kev tsim kho, xws li cov tshuab hluav taws xob thiab cov tshuab hluav taws xob rau kev hloov pauv kev lag luam thiab kev thauj mus los.
Lub teb chaws Yelemees yog nyob rau sab hnub poob thiab Central Europe, nrog Denmark ciam teb rau sab qaum teb, Poland thiab Czech koom pheej mus rau sab hnub tuaj, Austria mus rau sab qab teb sab hnub tuaj, Switzerland mus rau sab qab teb-sab hnub poob, Fabkis, Luxembourg thiab Belgium nyob rau sab hnub poob, thiab lub Netherlands mus rau sab qaum teb hnub poob.Nws feem ntau nyob nruab nrab ntawm latitudes 47 ° thiab 55 ° N thiab longitudes 5 ° thiab 16 ° E. Lub teb chaws Yelemees tseem ciam teb los ntawm Hiav Txwv North thiab, nyob rau sab qaum teb-sab hnub tuaj, los ntawm hiav txwv Baltic.Nrog Switzerland thiab Austria, Lub teb chaws Yelemees kuj tseem muaj ciam teb ntawm cov dej tshiab Lake Constance, lub pas dej loj thib peb hauv Central Europe.German thaj chaw npog 357,021 km2 (137,847 sq mi), suav nrog 349,223 km2 (134,836 sq mi) av thiab 7,798 km2 (3,011 sq mi) dej.
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