twin wall collar usually is the wear resistent flange, there is a wear resistent seal into the collar, material is usually alloy steel, inside material is SUJ2(GCr15). outside material is Q235, model is DN125, DN150, DN175, height is usually the 35mm, 38mm, 45mm. this kind of wear resisting flange is used on the hraden pipe, double wall pipe, and Ultrahigh pressure pipe. Concrete Pump Twin Wall Collar Concrete Pump Pipe Collar,Concrete Pump Twin Wall Flange,Concrete Pump Harden Pipe Flange Hebei Shengdebaolong International Trading Co.,ltd , https://www.sdblpumpparts.com
"My car is clearly in the "warranty period", the tire can burst why the 4S shop refused to replace it for free? "Mr. Lee said in angrily.
The original owner, Mr. Li, bought a car in a 4S shop. It took a long time and the car tire burst. The 4S shop was not listed in the “Three Guarantees†list. The vehicle's 'warranty period' has preconditions. Not all parts of the body are warranted.
Wearing parts will not be compensated and should be checked regularly.
1. The wiper sprays some cleaning liquid to start the wiper, and it is important to note whether the wiper action is smooth and if there is a relatively large noise. If any, it may be that the wiper is over pressure on the glass and proper adjustment must be made. If scratches and scratches are not clean, it may be necessary to check for signs of aging, cracking, etc. Wiper blades need to be replaced.
2. The most direct method for determining whether the brake pad needs to be replaced is the thickness of the brake pad and the brake disc. The new brake pad is generally about 15mm thick. When wear is only 1/3 (4-5mm), it should be replaced. Do not wait until worn out until the limit of the brake pad gives off the “click†sound of the iron grinding iron. At this time, the brake disc may also be damaged.
Like the brake pads, the brake disc will be worn out during frequent emergency braking, so bad driving habits will directly lead to the reduction of the brake disc replacement cycle. The difference is that due to the material issues, the brake disc is better than the brakes. The film is more wear-resistant and the replacement cycle is longer. Under normal circumstances, when replacing the brake pads for 2-3 times, the brake disk needs to be replaced.
3, the battery life of the general car battery is 2-3 years, the new car's original battery can be used for more than 3 years. So if your battery has been used for almost two years, be aware that its useful life may have expired. Forget to turn off the light or vehicle-mounted electrical equipment, the vehicle is not turned off before the flameout, in the absence of a large number of vehicles using electricity equipment, these actions will cause damage to the battery.
4, the spark plug spark plug electrode normal color is gray, if the electrode burns black with carbon deposition, then there is a fault. The general driving distance should be changed from 20000 to 300,000 kilometers. The sign of the spark plug replacement is that it does not flash, or the electrode discharge part is ablated to a round shape. In addition, if it is found in the use of spark plugs often carbon deposition, off the fire, usually because the spark plug is too cold, need to use hot-type spark plugs; if there is a hot ignition phenomenon or the impact sound in the cylinder, you need to use cold-type spark plugs.
5. The replacement cycle of tyre tyres is relatively stable in automobile parts. The general time is about five years. However, during the driving process, the rough road surface, unstable tyre pressure, or frequent tyre punctures will drastically reduce the number of tyres. The service life, so in addition to regular inspection of the tires, as far as possible on the smooth handling of the road, refused to violent driving is the key to extend the life of the tire.
Tip: After buying a car, the owner must read the “Maintenance and Maintenance Manual†carefully. The terms of the warranty are the basis for your warranty within the warranty period. It also allows you to specify which components can compensate for which components and cannot pay for it.
These auto parts are not damaged nor warranty repair parts regularly checked