然而,铝

Used primarily in standards for determining water in crude petroleum, tars and derivatives of those materials. 大模型，3.75" x 9.5" (95mm x 241mm) ID, has three tubulures, two drilled 10/18 and one drilled 24/40). 小模型，3.5" x 6" (89mm x 152mm) ID, has a 1 qt, (0.95L) capacity and one tubulure. Both are cast aluminum.