Q:Who invented the first supermarket cart?

The inventor of the shopping barrow -- celwin Goldman (1937) Sylvain paillard, Goldman is the boss of a supermarket, Oklahoma city, one day, when he is gazing at the store a few folding chairs, suddenly produced inspiration, invented the shopping cart

Q:How to remove the fold cart cart wheel

The wheels of the two carts are built from the sides of the wheel, which is embedded in the wheel shaft. They depend on the wheels on the wheels to keep the wheel shaft and prevent it from falling off. When you pull the card apart, you can remove the force that limits the wheel, and you can pull the wheel around the left and right sides.

Q:The pushcart is the province or the driving force

Case 1: if the cart and pull force are in the same direction as the moving direction, the two forces are equal.

Q:The bigger the wheel of a baby cart, the better

This idea of purchasing is important, after all, the security factors involved in actual use.

Q:What is the difference between LV1 and LV10?

In fact, I don't think the rank of pushcart will affect the maximum weight of the cart What if the GF doesn't know the formula If the use of the Jathena definition cart should be:

Q:How to maintain and maintain the cart

Check the screws regularly for loose, damaged parts or seams. Replace damaged parts if necessary. The operation should be carried out strictly in accordance with the instructions in order to avoid unnecessary damage.

Q:Ask a professional to answer: the logistics car is what material?

Surface paint fade over time, however, is not so shiny, stainless steel cart combined with their advantages and disadvantages of bearing is good, life is the longest, but is the price will be slightly higher than that of plastic and steel cart cart,

Q:How clean is the stainless steel trolley

The daily cleaning of stainless steel is not suitable for water washing, and washing not only does not clean stainless steel, it can also damage the brightness of stainless steel in the long run. Best tool cleaning stainless steel is cloth and fine waves "brand stainless steel brightener, first with a clean piece of cloth, to wipe the dust on the surface of stainless steel, make stainless steel look more clean; Then pour the stainless steel gloss over the cloth and rub it back and forth on the stainless steel surface until all the stains are removed. Finally, take a clean cloth and rub it back and forth on the stainless steel surface until you clean the stainless steel gloss and make the stainless steel surface shine.

Q:Is it a pushcart or a car?

Pulling a cart is more efficient than pushing a cart Wheelbarrows, easy to use, can be pushed and pulled. Push and pull force direction is same as the Angle of horizontal line, is it a pushcart or pull a car? The force is not so easy, it depends on the resistance of the wheel

Q:How do you remove the scratches on the cart wheel and the PVC floor

After ten minutes, with grinding machine was carried out on the floor surface grinding, polishing with suction machine after sucking up moisture from the ground, reoccupy clear water clean the floor surface, drag dry, after waiting for the surface dry completely, then coated with three times more than special floor wax, even if the surface polishing, also can get ideal cleaning effect. This kind of work usually needs to be done by professional cleaning company, recommend the company that is appointed by this brand to undertake this job.