Chain njikọ nsu igwe na-mara dị ka diamond net igwe, coal mine support net igwe, arịlịka net igwe, yinye njikọ nsu igwe ngwaahịa ngosi igwe, net na-akpa ákwà igwe. Chain njikọ nsu igwe bụ ụdị waya ntupu igwe na crochets ala carbon ígwè waya, igwe anaghị agba nchara waya, aluminum alloy waya, PVC waya na plastic sprayed waya na-etolite yinye njikọ nsu. Ntupu nwere ntupu edo, ezigbo ntupu elu na ọdịdị mara mma, obosara weebụ na-agbanwe agbanwe, waya waya na-agbanwe agbanwe, ọ dịghị mfe imebi ma nwee ogologo ndụ ọrụ, ịkwa ákwà dị mfe, mara mma ma dị irè.