公司可以根据用户需要在加重钻杆上敷焊铁基粉末合金、碳化钨、ARNCO 100XT、300XT等耐磨带。在保护套管的同时减少了钻具的磨损，延长了钻具的使用寿命。
        内涂层可以有效地阻止腐蚀源的形成，减少腐蚀裂纹的发生。公司也可以根据用户要求，在加重钻杆内壁涂敷TK34、DPC以及TC2000等系列涂料。
 
        PDM can hardband HWDP products with iron-based powder alloy powder, tungsten carbide, ARNCO 100XT, ARNCO 300XT and other materials according to the requirements of customers. While protecting the casing, it reduces the damage to drilling tools and extends their service life.
        Inner plastic coating can effectively prevent the originating of corrosion pit, and reduce the appearance of corrosion flaws. PDM coats HWDP products with TK34, DPC, TC2000 and other special kinds of coatings based on the customer’s instructions.