Inquiry (采购产品): diamond coating We are making a rotary engine that has steel against titanium with no lube. We need a coating with low coef. of friction and is very hard. Do you have such a coating? Paul **** Hidden Message ***** Paul Kapralos 06002 Company: Liquid Piston Inc E-mail: pkapralos@liquidpiston.com **** Hidden Message ***** pkapralos@liquidpiston.com