... working temperature and pressure, PE pipe is able to use more than 50 years.2. Excellant ... good hygienic performance of PE pipe:no need to add heavy metal salt stabilizer when produing PE ... welding technique is simple. PE pipe is easy to operate and install. The whole engineering fee is low. ... corrosion,shake resistence,good quality, cheap price, easy to use and install. Lejie HDPE pipe is suitable ...