He maha nga tau o te wheako i roto i te hanga i te potae toka concave , Zhejiang SKG Medical Technology Co., Ka taea e Ltd te whakarato i te whānuitanga o te potae hurihuri . concave potae ka taea te whakatutuki i nga tono maha, ki te hiahia koe, tena koa tiki mai i ta maatau ratonga ipurangi mo te potae hurihuri concave .I tua atu i te rarangi hua kei raro nei, ka taea hoki e koe te whakarite i to ake ake potae wiri concave ahurei kia rite ki o hiahia.