Q:Who invented the first supermarket cart?

On June 4, 1937, he first started the cart in his own "standard supermarket". Today there are 20 million to 25 million shopping trolleys used in supermarkets around the world,

Q:How do you install the ball bearings in the middle of the wheelbarrow?

Gently hammer out the small hammer, and put it in with the old bearings.

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

The wheels of a lot of baby strollers are now disassembled, and all of them are plug-in installations, which are very simple. As long as the lock is locked and the normal use is avoided, there is usually no problem.

Q:What is the difference between LV1 and LV10?

LV1 and LV10 difference is ~ LV1 load is small and slow moving ~ up LV10 load will increase and movement speed back to normal ~ trolley modification is also related to and their own level

Q:Why did the rear wheel of the cart choose the wheel

The aim is to better control the direction of the car travel, we produce warehouse turnover hand carts are also with this in mind, because human universal active wheel in the nearest side, easy to the human body the force imposed on cart to better absorb, more conducive to car body to travel!

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

Don't surface scratch occur. Do not use rough and sharp material to scrub stainless steel surface, mirror light, in particular, want to use a little soft, not easy to fall off the cloth to scrub, sand and steel wire drawing surface, along the grain wipe, otherwise it's easy to make flowers surface. 2, avoid the use of liquid detergent containing bleaching compositions and abrasives, steel wire ball, grinding tools, such as to avoid residual detergents, corrosion of the stainless steel surface, at the end of the washing to flush the surface with clean water. 3, stainless steel surface dust, and easy to get rid of dirt, can use soap, weak washing wash and binder composition, use of alcohol or organic solvent scrubbing (ethyl ether, benzene)

Q:What's the use of the trolley in the airport

Put the car there before the security check Of course you can use it without your freedom

Q:Can four months old children use a sitting cart?

It depends on whether the child's cervical spine is strong enough for the lumbar vertebra, and whether the development is good or not depends on the age of the child.

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

Floor is in use process, due to the human body into the sand, leather shoes of scratch and stool, chair of the mobile cause pollution to the ground, such as protective wax on the surface of the floor at the same time, due to use and wear, lose their original luster, the floor is for floor maintenance.