（1）滾塑一次成型，可制造二通、三通、四通90°~165°任意交匯的所有規格檢查井。
（2）充分體現滾塑制品的優越性：耐沖擊，耐擠壓，耐磨，抗應力開裂性好，耐化學腐蝕性好，耐老化，使用壽命長。
（3）水流阻力小，提高排放效率。
（4）搬運很方便，提高施工效率。
（5）整體一次成型，極無滲漏，沒有二次污染。
（6）塑料檢查井配井內蓋和安全網，當井蓋破裂或被盜后能有效防止人、車安全。
（7）可回收循環利用。

(1) rotomolding a forming, can make two-way, tee, four-way 90 ° ~ 165 ° any intersection check well all the specifications.
(2) plastic products fully embody the superiority: impact resistance, compression resistance, abrasion resistance, good stress cracking resistance, good resistance to chemical corrosion resistance, ageing resistance, long service life.
(3) small flow resistance, improve the efficiency of emissions.
(4) transport is very convenient, improve construction efficiency.
(5) a whole shape, no leakage, no secondary pollution.
(6) plastic check well with well cover and a safety net, when the cap or have it stolen can effectively prevent broken people, car security.
(7) can be recycling use.

周轉箱規格參數表（堆疊式）

優點：綠色、環保、節能型檢查井

例：L-Z-1000-400S-400