... in diameter. It owns features with lightweight, large bulky, low thermal conductivity, high compressive strength, smoothly mobility.It can ... of resin.Hollow glass microspheres occupy less surface area, low oil-absorption rate, and evenly disperse in mixture. Its ... golf, sealant, pipeline insulation materials, artificial marble, PVC foam, low density oil drilling, light cement, and otherdeep-sea buoy etc ...