... T:0.8--4.5mm Galvanized steel pipe for greenhouseZinc coating:70-380g/m²Material :Q195-Q235chemical ... 30-0.35),P(<=0.03),S(<=0.04)physical properties:yield strength (195-225Mpa),tensile strength ... (350-385Mpa), elongation:>=28USE:Widely applicable for ordinary uses in water,gas,air and steam, ... at your convenience timely,I am waiting for your early reply!Thanks very much!!! Galvanized steel ...