Wooden ward door/department door

Airtight door manufacturer describes its product characteristics

Airtight door product features: add heavy, super heavy automatic door unit

1, the use of functional governor, directly adjust the automatic door operation mode, technical parameters, operation mode is very convenient.

2. The machine has good general performance and is suitable for various doors.For the heavy door, can highlight his performance and advantages;This two automatic door unit, is an upgraded version.Designed for heavy duty doors.

3, standard configuration can be connected to a variety of additional accessories, access control;The range of functions is very wide.Example: swipe card door, attendance door, remote control door, touch door, induction door, foot door, can be connected: safety eye, double door interlock.

4. Wooden ward door/department door with unique noise-deadening guide design, smooth and quiet operation;Safe and reliable, superior performance.

5. The motor is driven by turbine worm with high torque.

6. Convenient for construction, installation and debugging.

7, high quality automatic door belt function module and remote control device combination of use, full of functions, rich and colorful USES.

8, applicable to a variety of door body door material, profile with use.

9. Unit door load asdc-150a / 300kg and asdc-250a / 500kg.

10, mold one-time molding thickening automatic door guide;Specially designed lifting parts for enlarged lifting wheel;High power motor running mode;Unique design of automatic door control board module;Can be the first choice for heavy automatic doors.

Lead is a chemical element whose chemical symbol derives from the Latin Plumbum with an atomic weight of 207.2 and an atomic number of 82.Lead has the highest atomic number of all stable chemical elements.The group number is IVA, and the cell is FCC.

Heavy radiation automatic door lead for the belt blue silver white heavy metal, it has toxicity, is a kind of extension of the main group of metals.Melting point 327.502℃, boiling point 1740℃, density 11.3437g/cm^3, specific heat capacity 0.13 kJ/ (kg·K), hardness 1.5, atomic volume 18.17 cubic cm/mol, soft texture, low tensile strength.

The content of lead in the sun is 0.01 PPM, and the content of lead in seawater is 0.00001 PPM on the surface of the Pacific Ocean. The oxidation state is Main Pb+2, Pb+4.

Lead is the most stable element with the largest mass. There are 4 stable isotopes in nature: lead 204, 206, 207, 208, and more than 20 radioactive isotopes.

When metal lead is exposed to oxygen, water and carbon dioxide in the air, its surface will soon oxidize to form protective films.Under heating, lead can readily combine with oxygen, sulfur, and halogens.Lead and cold hydrochloric acid, cold sulfuric acid almost no effect, can react with hot or concentrated hydrochloric acid, sulfuric acid;Lead reacts with dilute nitric acid but not with concentrated nitric acid.Lead dissolves slowly in strongly alkaline solutions.