Plastic cap for steel pipe end protection Material:Plastic Different sizes avaiable. Application:for end-protecting of thread The plastic cap used for the end ... fence.50x50,60x60,75x75,90x90,100x100, Different sizes avaiable. Application:for end-protecting of threaded or non-threaded tubing, rods,pipeEasily ... , accept custom-made products, you are very welcome to contact for more information!