... baso,congo,cameroon,angola etc.. east africa(black material with much copper inside):tanzania,uganda,kenya,ethiopia etc.. north africa & ... middle east(raybestos material with much copper inside):egypt,algeria,sudan,tunisa,morocco,libya,uae,saudi arabia ... lebanon,oman,yemen etc.. south asia(akebono material with much brass inside):pakistan,sri lanka etc.. south asia(Valqua material ...