... steel,carbon steel,stainless steel,etc 2.Good quality and competitive price 3.Timely delivery 4. ... Factory based 1. Material: Alloy Steel & High Manganese Steel2. Machine Type: Drilling tool3. Standard: API ... DNV,NK,KRDeQian Hangzhong Forging Co., Ltd. with more than 50years forging experience, Our annual ... power spindle, heavy load gear, ship shaft, roller, tube-shaped forging, ring forging, and all ...