Ọkpụkpụ瓦楞mgbidi okpukpu abụọ (DWC管道)bụ哥哥斯ọkpọkọ ọhụrụ nwere聚乙烯哥哥斯elu哥哥斯卡akrngwa。Ọ nwere njirimara nke曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折曲折ndụ ọrụ。Nhazi mgbidi ya dmma na-ebelata ọnụ aha ya ma e jiri ya tnyere ọkpọkọ nke ụlọ ndọzọ。Na n'ihi Na njikọ ahụ dmma ma bụrụ nke a pụrụ dabere Na ya, a Na - ejikarya eme ihe n'ụlọ Na ná mba ọzọ。Dochie ọnụ ọgụgụ buru ibu nke ọkpọkọ ihe na nkedo ígwè。