Hi,I would like to know the price for zirconia ceramic all type of bearing.I am interested in buying 50 Unit Units.10 pcs 6307 35 x 80 x 2120 pcs 6818 90 x 115 x 13 6 pcs 6313 65 x 140 x 33 2 pcs 51413 65 x 140 x 56Please provide us with a quotation.Thank you.