1.prompt delivery 2.high limited speed 3.competitive price 4.OEM service 5.Experience Series 151120;51130;51220;53220;51320;53320;52220,51108Ring MaterialGCr15, GCr15SiMn, Chrom steel, 52100Cage materialBrass, steelID size20mm— 1600mmQuality standardISO9001:2000PrecisionP0, P6, P5ClearanceC2, C3, C4, C5Delivery date10-20 workdaysPayment Term 130% T/T in advance, 70% T/T against copy of B/LPayment ...