Item:anti pollution mask
Material:cotton or customization
Function:anti pollution,dust,Pm2.5,smog,fog,pollen Etc
Color:black or as customer
’
s requirements
Size:24*18 cm or as customer
’
s requirements
Logo:Accept customization
Net weight:20g...
合金鋼鋼管
ASM A 335 / ASME SA 335 GR . P 5 , P 9 , P 11 , P 22 , P 91 , P 91
規格:ASTM A 335
グレード:P 1P 2、P 5、P 9、P 11、P 91、P 92
10.3 - 660 mm
wt : 1.6 - 60 mm
長さ:5.8 m - 12 mまたはランダムな足
技術的クエンチ
&a...