EC21 Buying Leads Catalogs - b-ultrasound http://importer.ec21.com/buy_leads/b-ultrasound.html Buy B-ultrasound Gelhttp://www.ec21.com/offer_detail/Buy_B_ultrasound_Gel--3529429.htmlwe are laser centre, need colourless ultrasound gel, 5L packaging - MOQ, pricing including transportation to Hong Kong20080512