The hard Tungsten carbide film slitting blade provided by Nanjing Costar Precision Tools Co., Ltd. is made of high-quality tungsten steel raw materials, with high cutting accuracy, stable quality and long service life. The blades are widely used in LLDPE, PP, PA, PVC, HDPE, BOPET, PET, BOPP, metal or stretch film, etc. 43*22*0.1/0.15/0.2/0.3mm; 57*19*0.4mm