The choose and buy is dynamoelectric the knowledge of the tool

Dynamoelectric thing is a kind by electromotor or it is electro-magnet is motivation, through transmission constituent drive has mechanization thing of the job, cent is hand-held and movable type. Dynamoelectric dynamoelectric thing is tectonic and normally lightsome, bulk small, weight is light, noise is little, apply rise very convenience, can reduce labor intensity greatly however, ascensive work efficiency. Reason is in a company only not merely welcome, a lot of families also can purchase dynamoelectric thing, in easy life small repair. When does dynamoelectric thing net share the whole world to purchase dynamoelectric thing knowledge.
1. purchases the dynamoelectric thing of power large and small according to demand. Major of dynamoelectric thing cent is applied and the family is applied. If the demand on the job, professional personage is applied, with will reduce workload, this
Demand purchases power to compare the dynamoelectric thing that big major uses. The opportunity that because apply,the family uses is not much also, the project is small also, it is good to purchase a thing.
2. watchs the outer packing of the thing. The painting that examines outer packing is clear, have damaged, of plastic box consolidate degree. strong classics uses agraffe.
3. examines thing oneself. Good thing exterior colour and lustre is even, plastic a shadow silk that appearance was not showing and dent, the state such as scratch. The installation amlposition between shell spare parts is insurmountable 0.5mm, any fittings are lubricant and beautiful without blemish, whole thing also cannot see smeary wait for spoil. Handle is being grasped comfortable, do not cut hand evenness. The length of cable ought not to be less than 2m normally.
4. examines thing introduction parameter, parameter what ought to go up with CCC certificate is collective. The specification of the thing says due the detailed address of manufacturer and manufacturer and connection means, have after service.
5. is grasped with the hand run a thing, receive electrify source, hold again and again use switch, make the thing starts again and again, investigate thing switch understanding use is reliable. The television that surveys the scene together, fluorescent lamp has unusual appearance. So that admit a thing,restrain of effective radio annoy implement.
6. experiences a thing personally. The foretaste when purchasing is used, hour should be good at a bell, if do not have a feeling to assume a post why to tremble out of order, investigation inverting scintilla did not surpass 2/3 level, without the arc that showing, do not give out curious sound, criterion the quality of this thing does not have how old doubt.