Product name Specification Material Steel/Production price (yuan/ton) Than yesterday last week than last month General line Φ6.5mm Q235 Changzhi Steel 5620 0 -110 -180 Common line Φ8mm Q235 Changzhi Steel 5620 0 -110 -180 High line Φ6 .5mm Q235 Haixin 5600 0 -100 -200 High Line Φ6.5mm Q235 Zhongyang 5600 0 -100 -200 High Line Φ6.5/8mm Q235 Zhongyu 5580 0 -120 -220 High Line Φ8mm Q235 Haixin 5600 0 - 100 -200 High Line Φ6.5mm Q235 Jincheng Fusheng 5600 0 -100 -280 Rebar Φ12mm HRB335 Changzhi Steel 5700 0 -20 -50 Rebar Φ12mm HRB335 Haixin 5680 0 -20 -20 Rebar Φ12mm HRB335 Jincheng Fusheng 5300 0 - 20 -100 Rebar Φ18-25mm HRB335 Changzhi Steel 5500 0 -80 -200 Rebar Φ16-25mm HRB335 Haixin 5460 0 -40 -140 Rebar Φ16-25mm HRB335 Wine Steel 5460 0 -40 -140 Rebar Φ16-25mm HRB335 Zhongyang 5480 0 -20 -120 Rebar Φ16-25mm HRB335 Jincheng Fusheng 5300 0 -50 -300 Rebar Φ12mm HRB400 Jiuquan 5800 0 -50 -100 Rebar Φ16-25mm HRB400 Jiuquan 5700 0 -50 -100 round Steel Φ12mm Q235 Changzhi Steel 6100 0 -80 -100 Round Steel Φ16-25mm Q235 Changzhi Steel 5760o -70 -90 Hot Rolled Plate 2.0mm*1250*C Q23 5 Taigang 6250 0 -130 -50 Hot rolled coil 2.5mm*1250*C Q235 Taigang 6200 0 -120 -50 Hot rolled coil 2.75mm*1250*C Q235 Taigang 6080 0 -170 -200 Hot rolled plate Volume 3.0mm*1250*C Q235 TISCO 6000 0 -150 -220 Hot rolled coil 4.0mm*1500*C Q235 Taigang 5730 0 -190 -340 Hot rolled coil 4.75mm*1250*C Q235 Taigang 5730 0 -190 -340 Hot rolled coil 7.5mm*1500*C Q235 Steel 5730 0 -190 -340 Cold rolled coil 0.5mm*1000*2000 Q195 Steel 7450 0 -50 -50 Cold rolled coil 1.0mm*1000 *2000 Q195 Angang 7400 0 -50 -50 Cold rolled coil 2.0mm*1000*2000 Q195 Angang 7300 0 -50 -50 Cold rolled coil 3.0mm*1000*2000 Q195 Angang 7300 0 -50 -50 Cold rolled coil 1.0mm*1000*2000 Q195 Angang 7400 0 50 50 Puzhong 6mm Q235 Tiansteel/Jiusteel 7200 0 -30 0 Puzhong 8mm Q235 TISCO 7120 0 -30 -30 Puzhong Plate 8mm Q235 Linsteel 7120 0 - 30 -30 Puzhong board 10mm Q235 Linang 6700 0 -30 -50 Puzhong board 20mm Q235 Linang 6270 0 -30 -130 Puzhong board 20mm Q235 Wenfeng 6270 0 -30 -130 Puzhong board 20mm Q235 Jingye 6270 0 -30 -130 Low alloy plate 8mm Q345 Taigang 7420 0 -30 70 Low alloy plate 10mm Q345 Taigang 7300 0 0 100 Low alloy plate 20mm Q345 Taigang 6620 0 -80 -180 Angle Steel 50*4.5/6m Q235 Zhaobo 5450 0 -50 -50 Angle Steel 10*8/9m Q235 Tang Steel 5450 0 -50 50 Angle Steel 14*140/9m Q235 Tang Steel 5650 0 -50 250 channel steel 8#a/8m Q235 Jiangtian 5700 0 -50 0 Channel steel 16#b/8m Q235 Jinan Steel 5550 0 -50 0 Channel 40#a/8m Q235 Steel cladding 5900 0 -50 0 I-beam 12# /12m Q235 Tang Steel 5600 0 -50 0 I-beam 25#/12m Q235 Laiwu Steel 5750 0 -50 0 I-beam 32#/12m Q235 Steel-clad 5800 0 -50 0
KN95 is the standard mask in China
KN95 Mask is a kind of mask with particle filtering efficiency in our country
KN95 masks and N95 masks are virtually the same in terms of particulate matter filtration efficiency
KN95 is the standard mask in China
It is derived from the Chinese national standard GB 2626-2006 "respiratory protective articles self-priming filter type anti-particulate respirator"
(1) Standard sources
This standard is the mandatory national standard of China, proposed by the State Administration of Work Safety, and put forward by the National Technical Committee of Standardization of Individual Protective Equipment (SAC/TC 112).
(2) Technical content
In terms of the scope of application, this standard is applicable to ordinary self-priming filter respirators to protect against all kinds of particles. Typical respirators, such as masks, are not applicable to other special environments (such as anoxic environment, underwater work, etc.)
From the definition of particulate matter, this standard defines various forms of particulate matter, including dust, smoke, fog and microorganisms, but does not define the size of particulate matter.
From the point of view of the filter element level, it can be divided into KN class for filtering non-oil particulate matter and KP class for filtering oil and non-oil particulate matter, and labeled with this class, similar to N and R/P stipulated in the interpretation guide of CFR 42-84-1995.
KN95 Mask
Non-medical KN95 Mask,4 Ply CE KN95 Mask,FFP2 KN95 Mask,KN95 Mask with CE
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