mobile/ 008615122904795 Material: mill steel black and hot dip Galvanizing / and stainless grating Usage: ladder, flooring walkway, platform ,steel structures, stair tread, well cover, trench cover, sump cover,compound gratings, storage shelves,fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.  2.Stair Tread Types:  galvanized ladder outdoor manufacturer 1)There are four kinds of stair treads T1,T2,T3,T4.     T1         Welded fixing and Without nosing     T2         Bolted fixing and without nosing,easy to installation and teardown.     T3         Welded fixing and with checkered plate nosing, can be skid.     T4         Bolted fxing and with checkered plate nosing, easy be installation,                  teardown and can be skid. 2) Material: Mild Steel (Low Carbon Steel) or Stainless Steel 4) Steel grating standards: A) China: YB/T4001-1998 Pitch of Bearing bar Cross-bar Pitch Specification of bearing bar load(width×thickness) 32×5 40×5 45×5 50×5 55×5 60×5   30 100 G325/30/100 G405/30/100 G455/30/100 G505/30/100 G555/30/100 G605/30/100 50 G325/30/50 G405/30/50 G455/30/50 G505/30/50 G555/30/50 G605/30/50   40 100 G325/40/100 G405/40/100 G455/40/100 G505/40/100 G555/40/100 G605/40/100 50 G325/40/50 G405/40/50 G455/40/50 G505/40/50 G555/40/50 G605/40/50 60 50 G325/60/50 G405/60/50 G455/60/50 G505/60/50 G555/60/50 G605/60/50  Hebei Jiuwang Metal Wire Mesh Co.,Ltd.(original Anping County Jintai Metal Mesh Co.,Ltd.).Established in 1992,our company is a manufacturer of large steel structure and steel gratings,integrating development,production and distribution.The company register capital is 10,080,000 Yuan,and take an area of 34,680 square meters.In 2003,we have got the ISO9001:2000 certification by BQR.  Shandong Xinsuju Steel Co.,Ltd. , https://www.sawlpipe.com
1. galvanized  galvanized ladder outdoor manufacturer We manufacture different styles of stair ladders that used in family,industry and construction. 
B) USA: ANSI/NAAMM (MBG531-88)Â
C) UK: BS4592-1987Â
D) Australia: AS1657-1988Â
E) Japan: JJS
Model NO.: T1, T2, T3, T4
Trademark: Jiuwang
Transport Package: Steel Belt
Specification: ISO9001
Origin: Hebei Anping
HS Code: 730890
3. galvanized ladder outdoor manufacturer   specification
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