This kind of thermometer is made up of three parts: Case, enclosed insert and connecting stem. In the aspect of shape, we have three types: Straight, straight angle, 135 degree angle. Those thermometers are used to measure the temperature of ships, pipelines, container and so on. Material of protecting case: Brass, carbon steel or stainless steel Length of casing: 130mm, 150mm, 160mm, 200mm, 220mm, 250mm Diameter: 20mm, 25mm Material of stem: Brass, carbon steel or stainless steel Length of stem: 50mm, 60mm, 80mm, 100mm, 120mm, 160mm, 200mm, 250mm, 300mm, 400mm Enclosed glass insert: White alumium scale board, corked top. The accuracy is controlled 1 line up and down. Fillings: Organic liquid(Y), mercury (G) Range: (-30-50 / 0-50 / 0-100 / 0-120 / 0-160 / 0-200 / 0-300 / 0-400)篊 Scale division: 1篊, 2篊, 5篊 Thread: 3/8", 1/2", 3/4", M16 x 1.5, M20 x 1.5, M27 x 2 Standard (DIN or JB/T): DIN16167, DIN16168, DIN16174, DIN16175, DIN16176, JB/T9262-1999, JB/T9263. 2-1999, JB/T9263. 3-1999