good quality automatic door closer

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1.Specifications:

Item
Overall Dimension
(mm)
Installation Dimension
(mm)
Applicable door weight
(kg)
Applicable door width
(kg)
Function
ABCDE
5022AW18040631916525~45≤900Adjustable Closing and Latching Speed    
5022AD18040631916525~45≤900Adjustable Closing and Latching Speed/Holdopen  
5023AW18040631916540~65≤950Adjustable Closing and Latching Speed  
5023AD18040631916540~65≤950Adjustable Closing and Latching Speed/Holdopen



2.Other details:

MOQ:1000-3000pcs
Port of Departure:NINGBO
Payment Way:T/T;L/C;other payment way in bilateral friendly solution;
Packing Way:industrial packing ; white box packing ; color box packing ; double blister packing; Elevator packing …, etc.
Supply Ability:8000  Pcs / Day
OTHER SERVICE:OEM



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Q:What are the commonly used hardware materials? What are their respective properties?
Aluminum alloy (A5052), ----O, H32, H34, H36, H38HCharacteristics: good corrosion resistance, corrosion Younai, formability and good weldability, good anodic treatment. Purpose: household appliances, optical instruments, clocks, gear panel, vehicle and ship materials, trucks, cargo plate've etc..
Q:What does hardware include?
Big hardware refers to steel plate, steel bar, flat iron, universal angle iron, trough iron, I-shaped iron and various types of steel materials;
Q:What do the hardware stores sell?
Most of the hardware stores include: ordinary light bulbs, energy-saving light bulbs, switches, sockets, wires, safety switches, taps, sandpaper, brushes, and economical coatings
Q:What kind of goods do you need to open a hardware store?
Such as furniture hardware accessories can be divided into functional hardware and decorative hardware two types. Functional hardware refers to the hardware parts that can achieve certain functions of furniture, such as connectors, hinges and slipway. We also need to pay attention to the doors and hardware accessories. Such as lotus and other hardware, the gold and silver and brass and iron, tin five metal materials, hardware is the mother of industry; the national defense foundation, hardware product material, usually divided into two categories of hardware and hardware. Big hardware includes steel plate, steel, flat iron, steel bar, universal channel iron, I-iron and various types of hardware, building hardware, tin, lock nails, wire, steel wire, steel wire cutting, home hardware, tools etc.. On the nature and use of hardware, iron and steel materials, non ferrous metal materials, machinery parts, transmission equipment, auxiliary tools, working tools, construction hardware, household hardware and other eight categories are to be considered
Q:Hardware should be how to buy?
Look brand. If you want to buy customer service guarantee bathroom accessories, consumers choose the best brand of hardware accessories, although the brand that the price is higher, but when the parts quality problems, consumers can find businesses to replace or repair, or buy the whole brand hardware accessories relatively cost-effective, selected the top ten bathroom accessories brand ArgentCrystal bathroom is a good choice.
Q:CNC lathe processing precision hardware, how to choose the grinding wheel?
Silicon carbide grinding wheels are suitable for grinding hard alloy and other tools with higher hardness.
Q:What does a hardware factory do?.
Hardware factory is to do hardware processing enterprises, the general supporting the need to use CNC machining center
Q:What is the rebate rate for hardware?
According to the 5% tax rebate rate, the income is 170W, according to the vat of 17%, the tax refund amount is =170/1.17*0.05=7.27W
Q:How to distinguish the advantages and disadvantages of bathroom hardware?
Bathroom hardware coatingProducts: in strict accordance with the national standard electroplating technology, using imported raw copper, nickel, chromium and copper after, three plating process, depending on the sense of thick, shiny, long-term use will not wear, corrosion, foaming or peeling,. Compact structure, uniform coating, color face crisp, generally more than 30 micron in thickness, no scratch coating surface and burr.Liepin: plating layer is thin and uneven, loose structure, poor adhesion, luster, the chrome plated directly in the blank, after a period of time, the surface is easily corroded, wear, blistering and peeling off. The coating thickness is less than 20 microns, the material is easy to be oxidized by air, and the coating surface has many scratches and burrs.
Q:What are the laws and regulations of hardware?
Enterprise safety law, consumer rights protection law, national standard (GB), the security rules of the Constitution and so on. There are also some local regulations

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