Note 2 - Summary of Significant Accounting Policies: Intangible Assets: Schedule of Indefinite-Lived Intangible Assets, Useful Lives (Details)	12 Months Ended
	Mar. 31, 2018
Use Rights
Finite-Lived Intangible Asset, Useful Life	50 years
Patent (non-US No. ZL200610068850.0)
Finite-Lived Intangible Asset, Useful Life	16 years 6 months
Patent (non-US No. ZL200510045001.9)
Finite-Lived Intangible Asset, Useful Life	14 years
Yuanbaofen product
Finite-Lived Intangible Asset, Useful Life	10 years