All construction materials that are in contact with water are food gradematerials.
Inner shell: seamless polyethylene
Out shell: consists of premium fiberglass embedded inepoxy resin
Threaded inlet from glass reinforced thermoplastic material
Flanges are made from pressure cast aluminum
Based for domestic vessles: impact-resisitant polypropylene
Based for industial vessles: FRP laminate material
Technical Support：YOUWEI Team
