Ko te Shandong Ruidao New Material Co., Ltd. e pānui ana ki ngā pire kōwhai i whakaaetia te tūmanako me te pai ake o te āhua. Nā te mīhini pai utu, ko ngā pire kōwhai i hangaia mai i te whai hua, e āhei ana ki te whakatupu i te whiu, te rākau, me ngā āhuatanga huarere nui. Ko ngā kaupapa hanga matatika e whakarite ana i ngā taurea tika me te mahi haumaru, e hēpi ana ia ki ngā momo whakamahi e rerekē ana, mai i ngā nohonga whare ki ngā wāhi hanga. E ai ki ngā pire kōwhai, ka tuku ake rātou i te tiaki whenua tōmatau, ā, ka whakauru anō he kaiwhakatipu ahurea ki ngā wāhi tuatahi, e whakaatu ana i te hiahia o te kāwanatanga ki te tuku i ngā rara hei whakauru i te hāpai me te āhua.