GB T3091 q235q195 mild carbon steel steel pipe sizes

. With 20 years of experience in manufacturing steel products we offer high quality, lower cost but the best service. These GB T3091 q235q195 mild carbon steel steel pipe sizes are available in different shape size and thickness according to the needs of our customer. GB T3091 q235q195 mild carbon steel steel pipe sizes have excellent quality to fully satisfy customer’s requirements.