... Material: stainless steel 304 or 316 2)FinishL:polishing 3) ISO9001-2008 adjustable Solar roof metal mounting bracket &hook ... 304 2) surface treatment:Zinc , powder coat, hot-dip galvanized,blackening, electroplate…3) machining Process:Stamping , turning,tube bending, welding, ... founded in 1998, there are more than 10 years; 3. Main products are stampings, furniture hardware, machine part, ...