I whakatūria a Donsen i te tau 1996, kei NINGBO, he tāone tauranga ataahua o te ao. Neke atu i te 20 tau o mātou wheako ki tēnei mara, ā, ko mātou tētahi o ngā kaihanga ngaio e tohunga ana ki te hanga paipa kirihou mō te tuku wai me te pūnaha whakamakuku.

Ko ā mātou hua matua ko ngā paipa me ngā hononga PP-R, ngā hononga kōpeketanga PP, ngā paipa me ngā hononga C-PVC, ngā paipa me ngā hononga U-PVC, ngā paipa me ngā hononga PE, ngā paipa whakamahana papa PE-RT, ngā pokepoke kirihou me ngā momo takirere kirihou katoa. Hei tauira: takirere PVC, takirere PPR, takirere C-PVC, takirere PARAHI.