Spiral welded pipe (SSAW pipe) bụ ụdị spiral onuete nchara nke ejiri eriri igwe gbazere dị ka akụrụngwa akụrụngwa, nke a na-agbado ya site na usoro ịgbado ọkụ nwere akụkụ abụọ nwere akụkụ abụọ nke arc wee pụta n'ime ụlọ okpomọkụ. Injinia ọkọnọ mmiri, ụlọ ọrụ petrochemical, ụlọ ọrụ kemịkalụ, e...
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