1.Name:Phenolic Resin Plastic Star Clamping Knob
2.Matrial: phenolic plastic,black,brass thread
3.Professional Perfomance Machine accessories supplier 
4.30 years experience black color and its material is bakelite,have smooth surface,allowing for high-impact resistance and durability.beautiful,comfortable black powder coated finish optimum utilisation between 50 and 130 celsius.outstanding resistance to oil as well as tough climatic conditions.There have been many years with popular praise and good reviews.And there we have  a large variety of shapes of handwheel