Require bearings[USA] 1) We need the bearings as follows, please advise if you can quote the 2 bearing sizes below, including your factory price in USD, delivery time & packing detailedly. Total of 2000 Pcs made up as follows. 1000 Pcs 6800-ZZ/O18W4 (10x18x4) Chrome metal Shields, 500 Pcs 6800-2RS/O18W4 (10x18x4) Chrome Rubber seals, 250 Pcs 6800C-ZZ/O18W4 (10x18x4) Chorme Ceramic Hybrids Metal Shields 250 Pcs 6800C-2RS/O18W4 (10x18x4) Chorme Ceramic Hybrids, Rubber seals Also looking for the same arrangement on 10x15x3-ZZ Narrow width with Metal Shields and Rubber seals and Ceramic Hybrids. Chrome or Stainless Races are acceptable. 2)We need the following bearings, please quote us your factory price in USD , delivery time & packing detailedly. 160 Pcs 6004/6204/6304 SI3N4 FC SI3N4 Inner/Outer/Balls, Full Compliment for Oven that run at 600 C High Vaccum/ 50 lbs load 100 Rpm. Customer does not know which 20 mm bore he wants. Your early reply will be highly appreciated. Thanks and regards,