DONGSHAO o se tasi o taʻitaʻi faʻapolofesa China Mshroom Head Square Neck Bolts gaosi oloa ma le maualuga ma le tau talafeagai. Fa'afeiloa'i e fa'afeso'ota'i i matou.
O le Hebei Dongshao Fastener Manufacturing Co., Ltd. ose ta'uta'ua fa'atau oloa ma gaosi oloa Mshroom head square bolts i Saina. O lona Mshroom ulu sikuea sikuea mea fa'apipi'i ua fa'ata'atia ma faigofie ona fa'apipi'i. Bayonet mamanu e puipuia ai le matala; Togafitiga lelei i luga, teteʻe o le corrosion, faʻamaʻi faʻamaʻi, ola umi o auaunaga, talafeagai mo le siosiomaga faigata; Malosiaga faʻamau, talafeagai mo manaʻoga maualuga o inisinia masini ma isi fanua; Vaega eseese o le mamanu mamanu o diameters eseese ma umi, ina ia fetaui saʻo faʻaoga eseese taimi ma manaʻoga.
Hex bolt, e lauiloa foi o le hex head bolt, o se tasi lea o faʻamau faʻaoga masani i faʻapotopotoga faʻainisinia, inisinia faufale ma mea faʻapipiʻi. O lo'o fa'aalia ai se ulu fa'a-hexagonal masani e fa'amauina e se fa'a'au, ma e mafai ona fa'aoga i nati, fa'amafola fa'amafola ma vaipuna e maua ai le so'otaga mau. E faʻaaogaina lautele i fausaga uʻamea, alalaupapa, masini taʻavale, meafale, masini paipa ma faʻataʻitaʻiga faʻapotopotoga faʻapisinisi eseese. O mea masani e aofia ai le carbon steel ma le uʻamea uʻamea, faʻatasi ai ma togafitiga faʻapitoa e pei o le electro-galvanizing, black oxide, hot-dip galvanizing, ma isi.
Fa'ata'ita'iga Fa'amatalaga masani:
Fa'ato'a filo fa'amau fa'amau: DIN933 / ISO4017
Fa'ailoga filo fa'amau fa'amau: DIN931 / ISO4014
Vasega uamea carbon: Vasega 4.8, 8.8, 10.9
Uamea uamea: A2-70 (304), A4-80 (316)