Product Specifications 30*30*3 30*30*3(10.5 large holes) Hot-dip galvanized 30*30*3 round hole 30*30*3【Multiple holes】 Single hole 30*30*3 Stainless steel 30*30*3 Stainless steel 30*30*3 single hole 40*40*3 40*40*3(12.5 large holes) Single hole 40*40*3 40*40*4 single hole, thickened National standard 40*40*4 (made of angle iron) Hot-dip galvanized 40*40*3 Hot-dip galvanized 40*40*4 national standard thickened version 40*40*3【Multiple holes】 Hot-dip galvanized 40*40*3 with four small holes Hot-dip galvanized 40*40*3 [multi-hole] Multi-hole design (40+40)*80 extended length Stainless steel 40*40*3 [multi-hole] Stainless steel 40*40*3 with four small holes Stainless steel 40*40*3 Stainless steel 40*40*3 single hole Two holes 45*45*4 round holes Two holes 45*45*5 thickened round holes 50*50*3 50*50*3 (14 large holes) 50*50*3 (10.5 small holes) Single hole 50*50*3 50*50*5 single hole, thickened Hot-dip galvanized 50*50*5 single hole thickened 50*50*4 (one horizontal and one vertical hole) 50*50*5 national standard thickened 50*50 thin angle iron 50*50*5 national standard angle iron (one horizontal and one vertical hole) Round hole 50*50*5 national standard angle iron Hot-dip galvanized 50*50*3 Hot-dip galvanized 50*50*5 national standard thickened Hot-dip galvanized 50*50*5 [single-sided double hole] Hot-dip galvanized 50*50*5 [oblong hole] 45*45*4 national standard angle steel 50+50*80*5 double row holes Three holes 50*50*4 [multiple hole positions] Hot-dip galvanized (50+50)*160 extended length 50+50*30【Multiple holes】 50*50*3 four small holes Stainless steel 50*50*4 Stainless steel 50*50*4 single hole 60*60*5 60+60*30 multi-hole positions 70*70*5 70*70*6 thickened version 80*80*6 100+100*4 thin model 100*100*7 square meters 40*60*4 50*70*3 thin model with small holes 50*70*4 50*70*5 thickened version Hot-dip galvanized 50*70*5 Single hole 50*70*4 Stainless steel 50*70*4 Stainless steel 50*70*4 [multi-hole] 50*70*3【Multiple holes】 50*70*5 thickened version [multi-hole design] Single hole 50*80*3 50*90*4 50*100*4 50+100*5 thickened version Stainless steel 50*100*4 Single hole 50*100*4 Hot-dip galvanized 50*100*5 50+120*4 thin model 50+120*5 50+150*5 Mini corner bracket Locking corner bracket Three holes 90*50*5 Four holes 90*90*5 Six holes 40*40*4 Six holes 50*50*4 Six holes 30*50*4 Six holes 50*70*4 Six holes 50*100*4 Six holes 50*200*4 Six holes 80*80*5 Six holes 80*100*5 Six holes 100*100*6 Anticorrosive wood with 50*70*2 size holes Anticorrosive wood, 50*50*4, eight holes 50*50*4 five-hole anti-corrosion wood Anticorrosive wood, 50*50*4, four holes Anticorrosive wood with 50*50*4 three holes 40*40*2 Reinforced Multi-Hole Angle Bracket 50*50*2 Reinforced Multi-Hole Angle Bracket 70*70*2 Reinforced Multi-Hole Angle Bracket 90*90*2 Reinforced Multi-Hole Angle Bracket 105*105*2 Reinforced Multi-Hole Angle Bracket 140*55*2 square meters 210*90*2 square meters Four-hole corner brace Extended length 100+100*50 Extended length 100+150*50 Extended length 100+200*50 Extended length 120+120*50 Extended length 150+150*50 Multi-hole 150+150*100 Enlarged and thickened 60+100*70*6 Enlarged and thickened 60+100*80*8 Enlarged and thickened 60+120*70*6 Enlarged and thickened 60+150*70*6 Enlarged and thickened 60+150*80*8 Enlarged and thickened 60+180*80*8 Enlarged and thickened 60+200*70*6 Enlarged and thickened 60+250*70*6 Enlarged and thickened 60+300*70*6 Hot-dip galvanized 50*75*5 for photovoltaic use Hot-dip galvanized 56*90*5 for photovoltaic use Hot-dip galvanized 63*100*6 for photovoltaic use Non-porous 40*40*3 Non-porous 50*50*3 Non-porous 50*70*4 Non-porous 50*100*4 Non-porous 50*120*5 Non-porous 50*150*5 Double row of holes 100+100*75*5 Double row of holes 100+100*100*7 Double row of holes 80+150*100*8 Double row of holes 100+200*100*8 Double row of holes 150+150*100*8 Double row of holes 150+150*150*8 Double row of holes 150+200*150*8 Double row of holes 200+200*150*8