all the container steel parts was shot blasted according to SA2.5 standard , and after blasted all the steel parts was auto painted by a zinc primer above 10μ, side panel was formed by a auto form machine , and all the dimensions could be controled well . we can produce more than 3000 pieces of side panels per day .Relying on excellent quality and service, our products sell well in all over the world.. We are now looking forward to greater cooperation with other oversea customers based on mutual benefits