... .Size available:1",2",3",4",5",6.5" 3.Material:40# Steel/1040/40CR 4.easy to operate Pipe clamp ... .Size available:1",2",3",4",5",6.5"2.Material:40# Steel/1040/40CR3.Application:Pipe clamp is used for ... bubble bag.Then put the pipe clamp into a carton. Concrete pump pipe clamp