* 1) Material: unalloy titanium . * 2) Grade: Gr1. * 3) Feature: high strength, acid and alkali resistance. * 4) MOQ:100pcs. Round washer for high-tensile structural boltingExplanation of friendly and cooperation.a)Quotation will be according to the product of specifications,grade, standard, please give me the detail of your order if you are convenient.b) Our company's bussiness are mainly ...