... sereiies 3. Advance equipment,HIP 4.Good service Precision machined tungsten carbide balls and valve seats* High strength, high wear resistance, high ... cemented carbide balls in their good precision, good wear resistance and good corrosion resistance. Type and specifications Dia.(D)Inch3/47/815/1611 ... terms of T/T, D/P, D/A, L/C, western union, paypal and etc;8/ could offer free samples below 0 ...