... also can produce for you.About the Advantages:1,Environmental protection,non-toxicity raw material2,Longevity,anti- ... noise:Have no harsh noise8,One-time molded, durableApplications:1,Molded resin covers, composite materials SMC covers , composite ... cover, retaining the tree board, ditch cover, water meter covers, valve covers, water meter box, hand hole covers telecommunications, electricity manhole ...