IFoshan Zhelu Trading Co., Ltd. yasekwa ngo-1999, eyayifudula ibizwa ngokuba yiNkampani yeChangyao Refractories, ikakhulu isenza i-aluminium alloy R&D, imveliso kunye nokuthengiswa kwezinto ezikhethekileyo zokunyibilika nokujula, ukubonelela ngemathiriyeli yentsimbi ephucukileyo kunye nezixhobo ezincedisayo zokunyibilika nokuphosa. Imveliso ye-aluminiyam kunye ne-aluminium yemveliso ye-alloy, imveliso ephambili ibandakanya ii-agent zokucoca, izilungisi kunye nezinto ezixutywayo ezifunekayo kwi-aluminium yokunyibilika kunye nemveliso yokuphosa, izinto zokucoca kunye nezinye izinto ezikhethekileyo kunye neepleyiti ze-ceramic filter, izixhobo zokuphosa, njl.