Do you know installation of rubber flexible bellow, Expansion joint, expansion bellow

Do you know installation of rubber flexible bellow, Expansion joint, expansion bellow friends aapka bahut bahut swagata hai aapka apne chanel sk mechanical tech me is video me fire fighting pump room me lage expansion joint kaise install kiya jata hai usko dikhaya gya hai aasa karta hu ki yah video aapko pasand aaya hoga