... standard fasteners, you can choose mainly materials between 200, 201,202, 304 , 316(A2, A4), 304L, 316L, B8, B8M etc. such ... etc. Other products include stainless steel round bars, angle iron, channel bars, wire rods, stamping parts, armor plate, steel sheet etc ... , machine, chemical produce, traffic product, and environment engineering. stainless steel channel bar