How do you know the protective effect when using a gas mask?

            Publisher: yibing We all know that wearing a gas mask can prevent the inhalation of poisonous gas. What is the protective effect of the gas mask on the colorless and odorless gas, whether wearing a gas mask will inhale the gas, in order to help people better understand ......

Printed road quote detailed process

Printed road quote detailed process With the rapid development of our science and technology, after decades of development of the printing road, we have gradually occupied our road decorative building materials market. Today, the process of our printing road quotation will be deciphered for every ......

Hard grinding of steel balls (2)

Home>Bearing knowledge> Hard grinding of steel balls (2) /*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Hard grinding of steel balls (2) Source: Bearing network time: 2017-11-09 /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089'; The cause of pu ......

New colorants simplify the regeneration of black plastics

[ Jiuzhi Plastics News] Recently, a number of British companies have jointly developed a new type of plastic additive coloring agent for recycling black plastic. This new technology is compatible with existing regenerative machines and requires only minor adjustments to the software. In the past, r ......

The effect of road paint on roads

The effect of road paint on roads When it comes to paints, we are no strangers, but do you know what we paint? In the traditional sense, most of our paints refer to our paints, but today we are not talking about paint road paints. Here we have a good understanding of our paint road paint. The so ......