EH-500/500H Igwe anaghị agba nchara na-agbanwe agbanwe ejiri maka mgbapụta ijikọ ya na tube, na-amịkọrọ ịma jijiji na ibelata mkpọtụ. Enwere ụdị abụọ. Otu bụ ụdị welded, nke ọzọ bụ ụdị anaghị agbado. Maka ụdị nke na-abụghị welded, mmiri mmiri na-akpọtụrụ elu na-akpụzi na mgbịrịgba na-enweghị ịgbado ọkụ. Wepu corsion nke ihe welded.