Type: slip on (so) Size: from 3/8" to 72" Pressure rating: from 150 to 2500 psi. Facing: rf (raised face), ff (flat face) and rtj (ring type joint). Material: Astm a105, rst 37.2 (st 37-2) Astm a350 lf2, a694 f52/f60/f65 A182 f304/304l, a182 f316/316l, a182 f51 and a182 f55 Specification: Ansi b16.5, ansi b16.47 a (mss sp-44) Ansi b16.47 b, ansi b16.48, ansi b16.36 Other din and en 1092-1 standards. 500-700kgs each plywood case, we can following customers' requirement.