Welina mai iā CHUANGRONG

1.ʻOi aku ka ikaika, rigidity a me ka hopena i ka hoʻohālikelike ʻana me nā paipu pā paʻa PE.

2. ʻO ka pale ʻana i ka corrosion ʻaoʻao ʻelua, e like me ka hoʻokō ʻana i ka corrosion o ka paipu plastik.

3. No ka hoʻonui ʻana i ke kūlana noi wela ma muli o ka coefficient conductivity haʻahaʻa.

4. ʻO ka paia i loko maʻemaʻe, ʻaʻohe scaling, e hōʻemi ana i ka 30% poʻo wai pohō e like me ka paipu kila.

5 Hoʻopili ʻia nā paipu e ke ala o ka electrofusion, e hauʻoli ana i ka ʻenehana makua, maʻalahi a paʻa ka pilina, ka hana ikaika o ka axial tensile, a me nā kikoʻī pili paipu like ʻole.

6. ʻO ke kaumaha māmā, ka halihali kūpono a me ke kūkuluʻana, a me ka hilinaʻi nui o nā paipu.Ma lalo o nā kūlana maʻamau, hiki ke ola i ka 50 makahiki.

7. ʻO ia ka mea pani maikaʻi loa no nā paipu galvanized ma muli o kona kumukūʻai haʻahaʻa a me ka hoʻomaʻemaʻe.

8. Hana ʻia ka hale ma ka wili ʻana i ka uwea kila spiral, hiki iā ia ke hauʻoli i nā ʻano o ka coefficient hoʻonui laina haʻahaʻa a me ka hiki ke hoʻololi maikaʻi i ke kuhikuhi axial, no laila e hoʻomaikaʻi maikaʻi i ka hana o ke kaiapuni adapt-ability.

9. Hiki ke kūpono i nā kahua noi o ka halihali wai lōʻihi ma lalo o nā kūlana hana paʻakikī.