Banyere Ụlọ ọrụ
Afọ 20 na-elekwasị anya n'ichepụta na ire nke taịlị ala
Hongyuan Waterproof e tọrọ ntọala na 1996 na ugbu a na-etolite n'ime ọkachamara waterproof usoro eweta integrating R & D, mmepụta na ahịa na-ewu na-eje ozi nakwa dị ka otu mgbakọ ụlọ ụlọ ọrụ isi na onye ndú nke China waterproof ụlọ ọrụ.