ʻO Langshuo ka mea hana nui a me ka mea hoʻolako i nā mea hana abrasive kiʻekiʻe no nā ʻoihana hana pōhaku.Kūleʻa mākou i ka hāʻawi ʻana i kahi ākea ākea, me nā pulupulu abrasive, non-woven nylon polishing pads, 5-extra / 10-extra oxalic acid abrasives, magnesite abrasives, resin bond abrasives, metal bond diamond abrasives, a pēlā aku.