... mounting bracket &hook 1)Material: stainless steel 304 or 316 2)FinishL:polishing 3) ISO9001-2008 adjustable Solar roof metal mounting bracket ... , samples or description. 1) material: Carbon steel , galvanized sheet, stainless steel 304 ,brass2) surface treatment: Zinc , powder coat, hot-dip ... pls send your requests by email or fax. Roof Hook (Stainless steel Roof Hook)1. Wind load resistance, 60m/s. 2 ...