Friends, if you also do plumbing work and do SWR pipe fittings. But you guys don't know this. Which pipe should be given lubricant or solvent cement which means which chemical should be given in which pipe. Many of us make this mistake and have to repent later, so always keep this in mind. Will share this video as much as possible because in this video I have told a lot of such information that if you ever do pipe line work in anyone's house then you will be able to work in the best way there.