Batch Smart quick quote，
Export quotation with one click，
One-click order
Monday to Saturday8:30-18:00
introduction：Product name certification based on standard test requirements(Standard clause number)Frequency routine Inspection and confirmation Test explosion-proof luminaireGB3836.1-2000Check the ground connector(15)Automatic interlocking device or warning sign inspection(21.2)Impact test(23.4.3.1)Drop test(23.4.3.2)Housing protection class test(23.4.4)Temperature measurement(23.4.6)Thermal upheaval test(23.4.6.2)Impact resistance test(appendixD3.4)Protection test of lead-in device(appendixD3.5)Lead-in device marking check(appendixD4.1)all
2015-01-12 Reading quantity 2803
introduction：aYield point（Physical yield strength）： designation：σs；unit：MPa(orN/mm2) intro：Refers to the metal material under tensile action to a certain degree，Its deformation（elongate）The ability of a material to resist external forces is suddenly increased greatly。 bSpecifies residual elongation stress（Yield strength、Conditional yield strength）： designation：σr；unit：MPa(orN/mm2) intro：Refers to the metal material after removing the pull call，When the residual elongation of the standard distance reaches a specified value stress；When the specified value is
2015-01-12 Reading quantity 1455
introduction： Mix the fuel and air properly﹐A device for stabilizing the ignition and complete combustion of fuel。The burner is used to burn pulverized coal﹑Liquid fuel and gas fuel boilers and industrial furnaces。Small coal-fired boilers generally use layer firing﹐No burner required。Burners can be divided into pulverized coal burners according to the different fuels burned﹑Oil burner and gas burner3class。 Pulverized coal burner There are two kinds: swirl and direct flow。 Swirl pulverized coal burner﹕Mainly by a wind cyclone﹑Secondary air conditioning damper(Swirl blade or volute)Imari﹑Secondary air nozzle composition(figure1 Swirling type
2015-01-12 Reading quantity 2799
introduction： 20Since the century﹐The annual output of cars in the world is several thousand﹑Tens of thousands of them﹐Tens of millions of cars later﹐to1978The year has reached4249Around 10,000 units。The automobile industry has become the worlds largest manufacturing industry。80age﹐In the world20One of the largest industrial enterprises6One is a car manufacturing company。1980years﹐The number of cars in the world is about3.35Hundred million vehicles﹐Where the car is2.65Hundred million vehicles﹐Freight cars and buses for7000Ten thousand units。Production and use of automobiles﹐It covers a wide range of areas。70age﹐In the world20Many of the largest car companies have employees500Thousands of people﹐With cars
2015-01-12 Reading quantity 2811
introduction： 1：What kinds of hammers are commonly used by riveters？ a：Hand hammer，Sledge hammer，Shaped hammer。 2：What kinds of chisels are commonly used by riveters？ a：There are two kinds of flat chisel and narrow chisel。 3：What is steel？ a：Carbon content is less than2.11The iron carbon alloy is called steel。 4：What is high carbon steel？ a：Carbon content is greater than0.6The steel is called high carbon steel。 5：Steel can be divided into several types according to its use？ a：Can be divided into structural steel，Tool steel and special purpose steel。
2015-01-12 Reading quantity 2888
introduction：In use“Derived sketch”Command time，Sometimes the resulting sketch goes in the opposite direction，What should I do?？Sometimes it is necessary to establish a directional text feature on a specified plane，What should I do?？This is where you need to use it“Revise a sketch”. The following example shows you how to do reverse text. 1.Select a face，sketch，Use the Type Tool to write，The writing must be positive at this time。As shown in the figure1。 2。Use“Revise a sketch”command，Move the mouse to the diagram2Shown on the box，Right click!!!!。You can make the sketch vertical
2015-01-12 Reading quantity 2792
introduction：PCS Pieces a(The root,Block scheduling) PRS Pairs double(On an equal footing) CTN Carton Cartoon box PAL Pallet/skid pallet PO Purchasing Order Purchase order MO Manufacture Order Production order D/C Date Code Production date code ID/C Identification Code (supplier)Identification code SWR Special
2015-01-12 Reading quantity 2896
introduction： The clutch pedal is familiar to those who have a car，What does the clutch pedal do？Now lets take a look。The clutch pedal has three functions。One is to achieve smooth shift，The second is to ensure that the car starts smoothly，The third is to prevent transmission overload。How does that work。 Achieving a smooth shift is when the car is in motion，To adapt to constantly changing driving conditions，The transmission system often has to be changed to work in different gears，The shift of a gear transmission is generally achieved by flipping gears or other gear shifting mechanisms，Push out a gear pair in the original gear position，Make another one
2015-01-12 Reading quantity 2796
introduction： one、 Scrap ferrous metal 1、Pig iron Pig iron is divided into casting pig iron and steelmaking pig iron，Nodular cast iron with pig iron three categories，It belongs to raw materials of steel products。 2、ferroalloy Ferroalloy is an alloy of non-metallic or metallic elements with iron。Depending on the type of element，Split into ferrosilicon，ferromanganese，ferrochrome，ferrotungsten，ferromolybdenum。Ferroalloys also include two black pure metals two、 Scrap non-ferrous metal 1、Non-ferrous pure metal copper：Pure copper is also known as red copper，The density is...8.94g/cm3,Melting point is1083The degree of,nonmagnetic.Has good electrical conductivity,Thermal conductivity and corrosion resistance
2015-01-12 Reading quantity 2886
introduction：timkenbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The raceway sound and its control method the raceway sound is when the one-way bearing is running，A smooth continuous sound made by its rolling body rolling on the raceway surface，It is a basic sound unique to all rolling bearings。General imported bearings[Imported bearing:Simply say the inlet shaft
2015-01-12 Reading quantity 1460
Complete category
Save worry and effort，Buy all at one stop
One-to-one customer service
Selection inquiry，Fast response
Delivery guarantee
Multi-position straight hair，No worries about delivery
Source of genuine goods
Genuine guarantee，Honest service
Source of genuine goods
Genuine guarantee，Honest service
Automatic parts one-stop procurement platform
Working hours：Monday to Saturday 8:30-18:00
008618117444109
Official wechat public account
Order for goods/Information at hand
