... non-standard tools, and a large-scale domestic manufacturer. Inorder to enlarge the operation scale, Cangzhou Dean Safety & ... shipbuilding, metallurgy, boiler, mine, gas production, power generation, storage andtransportation, pharmacy, gas production, wine production, leather, plastic, ... maintenance. These productsare made by (300KN-1600KN) large friction press through die forging and tested by ...