TALLSEN KNOB HANDLE mamanu tasi-pu, faia i le zinc alloy, faatasi ai ma le faiga electroplating luga, le mafai anti-ele ua atili faaleleia. O luga o le oloa e lamolemole, o laina e lamolemole, ma o le paʻi e maaleale. O le mamanu mama ma le matagofie e fetaui lelei mo sitaili teuteuga o fale faʻaonapo nei. O le oloa o loʻo i ai foliga mataʻina, tulaga maualuga maualuga ma maualuga.
I tulaga o tekinolosi gaosiga, TALLSEN KNOB HANDLE taʻitaʻia tulaga faʻavaomalo faʻapitoa faʻapitoa. O oloa ua pasia le ISO9001 quality management system certification, pasia le SGS quality test and CE certification, ma ua mautinoa le lelei o oloa.