... iron onesnice appearance:rich colors avallable, whole material dying for long lasting.anti-theft:non-recycle,anti-theft ... , durableApplications:1,Molded resin covers, composite materials SMC covers , composite material BMC covers, magnesium covers, resin covers, polymer ... pipe well, heat supplied, gas well4,Round SMC Manhole Cover&Circle BMC manhole covers&resin fiberglass covers&Molded resin covers& ...