Kei te Tāone o Zhongshan, Porowini o Guangdong, te kamupene Zhongshan Rizda Castor Manufacturing Co., Ltd., tētahi o ngā tāone matua o te Pearl River Delta, e kapi ana i te rohe neke atu i te 10000 mita tapawha. He kamupene hanga wira me ngā wira hurihuri ngaio hei whakarato i te whānuitanga o ngā rahi, ngā momo me ngā momo hua ki ngā kiritaki mō ngā momo tono. Ko te kamupene o mua ko BiaoShun Hardware Factory, i whakatūria i te tau 2008, ā, he 15 tau te roa o te wheako ki te hanga me te hanga ngaio.
He nui te kaha o te wira rapa matua konumohe ki te kawe i ngā wira, te ātete ki te kakahu, te ātete ki te pānga, te ātete ki te waikura matū me te ātete ki te wera, ā, he whānuitia te whakamahinga i roto i ngā umanga. Hei tāpiri, ko te paparanga o waho o te wira he rapa hei takai, he pai te whakaiti i te haruru. He maha ngā pōro maitai iti e karapoti ana i te pokapū o te kakau i roto i te peera pōro takirua, nō reira he iti te waku, ā, kāore he turuturu hinu.
1. He ātete kume tino pai, he kaha kume teitei hoki.
2. Kāore te matua konumohe e waikura ngāwari, ā, he pakari hoki.
3. He pai te ārai hiko, te ātete ki te paheke, te ātete ki te kakahu, te ātete ki te huarere me ngā matū whānui.
4. Ka taea e te kakano ngohengohe te whakaiti i te haruru i te whakamahinga.
5. Ngā āhuatanga miihini hihiri pai.
6. He roa te ora o te peera pōro takirua, ā, he pai te mahi anti-chrooping.
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| Te Diameter o te Wira | Utaina | Toki | Āwhata | Utaina | Rahi o te pereti o runga | Te Mokowā o te Pūwero | Te Diameter o te Pūwero | Te whakatuwheratanga | Tau Hua |
| 80*32 | 120 | / | 2.5 | 108 | 105*80 | 80*60 | 11*9 | 42 | R1-080R-622 |
| 100*32 | 150 | / | 2.5 | 128 | 105*80 | 80*60 | 11*9 | 42 | R1-100R-622 |
| 125*40 | 180 | / | 2.5 | 155 | 105*80 | 80*60 | 11*9 | 52 | R1-125R-622 |
| 160*50 | 250 | / | 3.0 | 190 | 135*110 | 105*80 | 13.5*11 | 62 | R1-160R-622 |
| 200*50 | 300 | / | 3.0 | 235 | 135*110 | 105*80 | 13.5*11 | 62 | R1-200R-622 |