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公开(公告)号：US3796608A
公开(公告)日：1974-03-12
申请号：US3796608D
申请日：1971-05-10
Applicant: PEARLMAN M
Inventor： PEARLMAN M
CPC classification number: C23C22/53 , B01J33/00 , B01J37/0205 , C09D1/00
Abstract: TREATMENT OF METALS, AND OTHER SURFACES, WITH DILUTE COLLOIDAL SLIGHTLY ACIDIC DISPERSION OF SILICA. THE METALS BECOME RESISTANT TO CHEMICAL ATTACK.
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