Sandblasting Ko te tukanga katoa o te tango me te passivating te mata o te tïpako whakamahi i te rere onepu tere. Kei te whakamahia te hau kōpeke hei kaha taraiwa ki te hanga i te kurupae rehu tere-tere kia tere te rehu i te rauemi rehu (kirikiri parahi, kirikiri kiripaka, kirikiri maitai koura, kirikiri rino, Hainan Prov...
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