manhole cover
(2) Longevity: anti-corrosion, anti-rust, anti-abrasion, excellent anti-pressure capability;
(3) Competitive price: lower than stipulated standard cast iron one (4) Light weight: 1/3 lighter than cast iron ones
(5) Nice appearance: rich colors available, whole material dying for long lasting
(6) Anti-theft: Non-recycle, anti-theft naturally
(7) Low noise: Harsh noise and rebounding free when car rolls
(2) Street lamp well, fire control well, all kinds of valve wells;
(3) City water, drainage pipeline well; heat supplied, gas well;
(4) As cover board for anti-corrosion project, open ditch; it also can be customized