Established in 1985, Rong Heng insulating material Co., Limited isthe largest manufacturer of armature balancing putty in China. Theproduct is used for dynamic balance of micro DC motors and some ACmotors. All of the products are RoHS compliant. There are manykinds of balancing compound for customers choice, such as: specificgravity 2.5-5.5, one component putty, high cohesive strength puttyfor rotating speed larger than 30, 000 etc.