Ceiling lamp is a kind of lamp, as the name suggests is due to the flat above the lamp, the bottom of the installation is completely attached to the roof so called ceiling lamp. The light source is ordinary white bulb, fluorescent lamp, high intensity gas discharge lamp, halogen tungsten lamp.

Automobile headlight detection is an indispensable part of automobile safety performance detection. The main parameters of headlight diagnosis are luminous intensity and beam position. When the light intensity is insufficient or the beam irradiation position is skewed.

Rocking chair is a special form of chair, improve the quality of life to increase the interest of life, is one of the old people like chair types. The rocking chair came long after the cradle and the rocking horse. Because of the human instinct to swing the body.

GB 2626-2019 Respiratory protection Self-priming filter anti-particulate respirator, the revised version of the standard GB 2626-2019 "Respiratory protection Self-priming filter anti-particulate respirator" has been officially released on December 31, 2019, and officially implemented on July 1, 2020.

Since the discovery of asbestos in certain products imported from China, the Australian Border Enforcement Agency (ABF) has been strictly checking the asbestos content of goods arriving from China since September this year, stating that all Chinese products containing asbestos will be banned from im.

I. Appearance inspection 1. Check the appearance of necklaces, bracelets and ankletsa. Check the necklace, bracelet and anklet as a whole. Stretch the chain with both hands to both sides, and observe whether it is broken.