-
Anonymous users2024-01-24Safety protective glasses are a kind of glasses that play a special role, and the glasses used in different occasions are also different. Such as surgical glasses used in hospitals, welding glasses used in electric welding, laser protective glasses in laser engraving, and so on.
Protective glasses, also known as labor protection glasses in industrial production, are divided into two categories: safety protective glasses and protective masks, which mainly protect the eyes and face from electromagnetic radiation such as ultraviolet, infrared and microwave, dust, dust, metal and sand and gravel debris, and chemical solution sputtering.
Guardrails about meters high can play a role in safety protection.
Protective railings should be set up in the vacant places such as balconies, verandahs, indoor cloisters, inner patios, roofs and outdoor stairs, and should comply with the following provisions: 1) The railings should be made of strong and durable materials and can withstand the horizontal loads specified in the load code 2) When the free height is less than 24m, the height of the railing should not be low.
If the bathroom does not destroy the original waterproof layer, there will generally be no leakage after moving in. But waterproof. >>>More
There is no law on this kind of thing, so it is not illegal.
First of all, you should check whether the security door has a certificate of conformity tested by a statutory testing agency, and there is a security technology protection product license issued by the security technology prevention department of the provincial public security department where the manufacturer is located. >>>More