产品名称           产品型号           张紧力 (N)        样带基准长度(mm)
 洗衣机V带           XM                300               500~1300 
                   XZ                300                500~1300 
                  XSPZ               500               500~1300 
                   XA                500                500~1500  普通V带和           SPZ               600±10               800~2500 
窄V带疲劳            SPA              1000±10              800~2500 
试验方法            SPB               1300±10              800~2500