Casting weight and size range are very wide, weighs only a few grams of the lightest dock trash rack manufacturers, heaviest up to 400 tons, the thinnest wall thickness of only 0.5 mm, the thickness can be more than 1 meter in length by a few mm to ten meters, can meet the requirements of different industrial sectors. Casting is also closely related to daily life. For example, often use the door handles, locks, radiators, down the water pipes, pots, gas hob, iron and other trash rack pier are casting. Casting quality test results are usually divided into three categories: quality products, rework, scrap. Qualified product quality and the appearance of the intrinsic quality meets the standards or technical conditions of delivery and acceptance of casting; rework the appearance of quality and inherent quality does not fully comply with the standards and conditions of acceptance dock trash rack products, but allows for the repair dock trash rack supply After the repair can meet the standards and requirements of the technical conditions of delivery and acceptance of casting casting; scrap the appearance of substandard quality and intrinsic quality are still not up to standard and technical conditions of delivery and acceptance of casting casting allowed to repair or rework later. Waste and scrap again divided into two kinds of foreign waste. Waste means within the factory or in the casting foundry castings found in waste; waste refers to the outer casting scrap discovered after delivery, they have caused economic losses than in the big waste. Trash rack ports, dock trash rack, Chen Hua Chen machinery provided by Qingdao China Machinery Equipment Co. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) strong, credible, in Qingdao, Shandong CNC machine tool industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chen Hua machinery and you hand into the brilliant, for a better future!