Bearing steel straight wire
Qilu Special Steel Co., Ltd. [China] 
Minimum Order: 0
Quality/Safety Certification: 0.00
spheroidizing annealing
Making process :
Hot rolled wire rod ( mould casting +VD) → spheroidizing Annealing →acid cleaning and saponification →cold drawing →recrystallization annealing →soft drawing→immersion oil →packing
