1.WFC elevator balance compensation chain is evenly coated by a layer of PVC liquid out of the high quality electric-welding chain,heated and solidified,and finally forming compensation chain into chain-in-chain shape.2.And clear the gaps between the every links,with no noise.WFC overcomes the shortcoming that PVC-coated chain is easily tore.It is used for the elevator with rated speed of below and equal to 1.75m/s. 3. WFC Basic parameters Model NoUnit weightWidthDending DianmeterDiameter of linkBroken load Maximum Hang Length (kg/m)(mm)(±50.0)(mm)(mm)(KN)(m)WFC0500.88±0.2021.0±2.0280.06.0±0.5≥15.63154WFC0751.12±0.2026.0±2.0280.07.0±0.5≥18.13165WFC1001.49±0.2029.0±2.0300.08.0±0.5≥23.68162WFC1251.88±0.2032.0±2.0300.09.0±0.5≥29.97162WFC1502.24±0.2036.0±2.0300.010.0±0.5≥37.00168WFC2002.98±0.2039.0±2.0300.011.0±0.5≥44.70153WFC2253.20±0.2043.0±2.0300.012.0±0.5≥53.28169WFC2503.73±0.2046.0±2.0300.013.0±0.5≥62.53171WFC3004.47±0.2050.0±2.0320.014.0±0.5≥69.93159WFC3505.22±0.2053.0±2.0320.015.0±0.5≥83.25162WFC4005.96±0.2056.0±2.0320.016.0±0.5≥94.72162