Drill pipes come in varying specifications of sizes, strength and weight. The length of a drill pipe is typically Range 2 at 31 feet but can come in other lengths as well.
® High productivity and competitive price ® Owe 14pcs quality and process control system ® The first to develop molding hydraulic press with PLC control system in magnetic area...
Silica brick is made of silicon as raw material and fired at high temperature. The silicon oxide content is more than 93%. It is used in hot air furnace, coke oven, glass kiln, etc. It has good resistance to acid slag corrosion, and the load softening tem
Gellan Gum is the extra-cellular polysaccharide produced by the gram-negative bacteria pseudomonas elodea that is separated from water lily,and is one of the microbia polysaccharides full of the development prospect in the recent years. Low acyl gellan gu