Drilling fluid pressure with a one-way closed Agent DF-1, a variety of special natural fiber process Filled with particles and additives in accordance with the appropriate level and allocation of a certain compound from the greyish yellow powder technology products. Drilling into products, under pressure difference in a one-way, there are various strata of leakage can play good sealing effect. convenient, good co***tibility, and this will not affect the performance of slurry
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Lingshou Aoqi non-metallic mineral material facyory