1. ʻO ka papa hana o nā mea maka he 60Si2Mn mea kila kila, hiki ke hoʻokō piha a ʻoi aku paha i nā koina hana o nā kūlana aupuni. ʻO ka hapa nui o nā mea hana mai Fangda Special Steel Technology Co., Ltd. He kūpono kiʻekiʻe nā Dimensional a me ka hana mechanical a me ʻenehana maikaʻi.
2. Hana ʻia ka ʻaha a pau me ka ʻenehana ʻeli kūpono a me ka maikaʻi kikoʻī.
3. Ke hoʻohana nei i ka pena spray spray electrostatic akomi kiʻekiʻe-voltage, ka pale ʻaʻai, ka pale kūpikiki acid, kūpaʻa wai ikaika, a me ke ʻano maikaʻi maikaʻi.
4. Ke hoʻohana nei i ka bushing bimetal, lōʻihi ke ola o ka bushing, ʻaʻohe paʻa a ʻaʻole maʻalahi e popo.