... ,Engineering,Automotive Casting,Precision Casting,Carbon Steel Casting Precision Casting,Carbon Steel Casting,Casting 1) Molding process: Loss wax ... investment casting,Sodium Silicate Technology,Colloidal Silica 2) Material: Carbon steel ... 80kg.7) Wall thickness requirements: Chinese lost wax min 1.5mm, wide/length max, 800mm, Japanese loss wax ...