... under:0.1 - 80umShapeDisc, squareness, tubular, rodlikeWork environmentNitric acid, sulfuric acid, acetic acid, oxalic acid, phosphoric acid, 5% hydrochloric acid, molten sodium, hydrogen, nitrogen, hydrogen sulfide, acetylene ... year. (4) BEST SEVICE: Can be customized and shipment quickly. (5) Best quality and competitive price.We are looking forward to ...