Duk wani shago da ke sayar da abubuwa dole ne ya tallata shi, wanda ya zama dole, amma duk da haka dole ne mu yanke hukunci da yawa na farfaganda a hankali. Alal misali, shahararriyar farfagandar “tasha ta ƙofa” tana nufin ɗan lokaci da ya wuce ba ta kimiyya ba. Yawancin lokaci idan muna magana game da mota, sau da yawa ana fitar da hinge na ƙofar don faɗi wani abu game da sassan, wannan ƙaramin abu dole ne a yi magana, amma don ganin yadda ake magana, ba zai iya yin magana a karkace ba.
Akwai sassa guda biyu masu haɗa kofar da jiki, ɗayan ana kiransa hinge, ɗayan kuma ana kiransa limiter, kamar yadda sunan ya nuna, ɗayan yana gyarawa, ɗayan kuma shine a iyakance kusurwar ƙofar, bari mu fara da hinge. . Hinge yawanci ana cewa ya zama hinge, akwai salo guda biyu na gama gari a kasuwa a halin yanzu, tambari da simintin gyare-gyare, yawancin samfuran samfuran Jamusanci an jefar da ƙira. Saboda tsarin ƙirar ya bambanta, don haka nau'ikan kauri na kayan hinge iri biyu ba iri ɗaya ba ne, ƙwanƙolin simintin gyare-gyare suna da kauri fiye da masu hatimi.
Simintin simintin gyare-gyare yana da fa'idodin samar da daidaito da haɗin kai, a takaice, ya fi ƙanƙanta kuma ya fi girma, daga tsarin ƙarfin ɗaukar nauyi kuma yana da fa'ida, amma nauyin ya fi girma, farashin samarwa zai zama mafi girma; Farashin samar da dangi na hinges na stamping zai zama ƙasa kaɗan, kuma ba za a sami raguwa ba don amfani da motocin iyali, wanda zai iya cika buƙatu.