Material: am350, 17-4ph, inconel718, inconel 625, hastelloyb, hastelloyc, monel 400, 316l, 300 series, titanium ta2, etc. Size: od 4mm-300mm Product performance: high sensitivey good linerity to 1%;stable peroformance +/-5% rigidity error;high compress ratio compression amount=( free length-thickness)*50~70%; small change of effective area; excellent anti-corrosion and heat resistance performance. High pression resistance up to 8mpa and good vibriation resistance and long service life; high manufacturing accuracy and the tolerance of wave plate is +/-0.003mm