Inquiry (采购产品): vacuum regulator Hello, We have several vacuum regulators that we purchased from Cole-Parmer (their part # EW-07061-30)and that appear to have been manufactured by your company. We need to replace the brass diaphram knobs (has DA stamped on it) on several regulators and were wondering if you sell this as a replacement part ether from your company or a distributor. **** Hidden Message ***** Dan Lousenberg 19880 Company: DuPont E-mail: robert.d.lousenberg@usa.dupont.com **** Hidden Message ***** robert.d.lousenberg@usa.dupont.com
