I'm JP in charge of overseas business in FINE which is Korean company. Actually, we are making heating jackets for Semiconductor equipments. But next year, we have a plan to manufacture watches. So we are looking for a company which can provide stably us o-ring having good quality.I’d like to know that you have the o-ring(rubber type) below size.- 0.8(ID)*0.4(Ø)- 1.0(ID)*0.5(Ø)- 2.4(ID)*0.6(Ø)- 20.0(ID)*0.5(Ø)Also do you manufacture Teflon type oring for usnig for Watch.I hope I can hear you sooner.Thank you