... such as cotton, wool, linens, silks, chemical fiber, carpets, umbrella cloth, denim, vinyl tiles, plastic carpets, stretch cotton, sacking, etc, but ... also because it has features of efficiency, auto-sharpening, high power, lower noise, low temperature, light weight, ... the rotation rate still keeps in 3000 r/min. After auto-sharpening, the rotation rate and power will return to the ...