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By certification 
Name: non sparking pipe wrench
Introduction: Widely used in a explosive and flammable place; fastening or removing bigger metal pipe or Cylindrical parts. It is the most conventional tool in pipe installation and repairing work
Material: Be-Cu,Al-Cu,precision casting products
Size: 200*25,250*30,300*40,350*50,450*60，600*75,900*85,1200*110 (mm）
Introduction: Widely used in a explosive and flammable place; fastening or removing bigger metal pipe or Cylindrical parts. It is the most conventional tool in pipe installation and repairing work
Material: Be-Cu,Al-Cu,precision casting products
Size: 200*25,250*30,300*40,350*50,450*60，600*75,900*85,1200*110 (mm）
