產(chǎn)品介紹: 浮球式重油取樣器符合gb/t4756《石油液體手工取樣法》、astm d4057《standard practice for manual sampling of petroleum and petroleum products》、astm d3700《practice for obtaining lpg samples using a
模擬秒表analogue stopwatch,copper chromium plated casing crown stopper with frame ring separate side reset button 1/5 second timingcounts up to 30 minutesw×d×h: 48×16×68 mm