Ditch Witch JT60 Horizontal Directional Drill. The Ditch Witch FX60 Vacuum Excavator. Ditch Witch, a company of Charles Machine Works, is an American brand of underground construction equipment, which has been in operation since 1949. The company is based in Perry, Oklahoma. Innovation of Ditch Witch machines started in the 1940s when a compact trenching machine was created to replace the pick and shovel for installation of some residential services.
Exocrine glands are glands that produce and secrete substances onto an epithelial surface by way of a duct. Examples of exocrine glands include sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, and mucous.Exocrine glands are one of two types of glands in the human body, the other being endocrine glands, which secrete their products directly into the bloodstream.xocrine glands are one of two types of glands in the human body, the other being endocrine glands, which secrete their products directly into the bloodstream.
There are two types of glands in the endocrine system, exocrine glands that take their secretions to the surface through ducts that exit the body (e.g., mammary, sebaceous, sweat, and glands that secrete digestive enzymes), and endocrine glands, the seven sets of gland secrete different hormones directly into the blood (they do not have ducts that carry their secretions to the surface and out of the body); the endocrine hormones are