... Long life Environment Friendly UHMWPE (Ultra high molecular weight polythene) Navigation Buoy: Navigation Aids, Channel Buoy, Fairway Buoy, Mark Buoy, Safe Water Mark Buoy, Lateral Mark Buoy ... , Starboard Mark Buoy, Wreck Buoy, Cardinal Buoy, Foam Buoy, Company: Shandong Buoy&Pipe Industry ...