Beijing LDH Technology Development Co., Ltd yinkampani ngokukodwa kwizixhobo ngokwahlukana igesi. Kukho ikakhulu kumashishini ezihlanganisiweyo kuyilo, uphando kunye nophuhliso, imveliso kunye nokuthengiswa lwabavelisi nitrogen, oxygen, umbane ozone ulwelo nitrogen generator. Kwiminyaka zokuvelisa kunye neentengiso, siye sadibana abahlobo ezivela kulo lonke ihlabathi, waseka ubambiswano elungileyo. Products lithunyelwa Bangladesh, Indonesia, Pakistan, eNetherlands, Brazil, Australia kunye namanye amazwe.