Petroleum manufacturers

Claimed petroleum coke Product Specification/Models Calcined petroleum coke: ASH. <0.5 V.M<0.5 MOSITURE<0.5 S<0.5 C>98 Payment T/T in advance or L/C at sig...  view detail

Petro-resin C9 Color No. from No.6 to dark Softening point: 110-140 Acid Value (mg KOH/g)% :1.0Max Ash Content %: 0.1Max  view detail

we have a professional supplier of new and used(rebuit)drill bits used for oil filed, water tricone bits, PDC bits and drill pipe.various of model and dimension condition and rea...  view detail