HEAVY-DUTY PIPE WRENCH

Handle:
　　　　 Shell Mold Casting. Ductile.
Upper Jaw:
　　　　 Carbon Steel (S45C), Drop Forged,
　　　　 Quenching & Tempering HRC 45-48 degree.
Lower Jaw:
　　　　 Carbon Steel (S45C) Drop Forged.
　　　　 Q