Overview RC Drill Bit RC PDC drill bit from GREAT are manufactured from AISI 4145H heat-treated steel. Reverse circulation drill bit are widely used in geological exploration samples, oil wells, mining, and other fields. The reverse circulation drilling method combined with RC ...
Waterdrop Shape Silicone Mat The silicone mat is novel and has a unique Water Drop Shape Design style. You will be in a good mood when you see this beautiful silicone placemats in a dinner. It can improve your dining environment. Technical Details of Waterdrop Shape Silicone ...
Separate the pure water from the solution containing solute with a semi permeable membrane that can only pass through water. At this time, the water on the pure water side will spontaneously pass through the semi permeable membrane and enter the solution side. The water surface ...