stainless steel carbon steel gear , pinion and rack 1.Helical Cylindrical gear 2.long life,high speed ... ,high quality 3.NBR co stainless steel carbon steel gear, pinion and rack transmission gearWe can make all kinds of gears according ... delivery and great customer service.--A Professional on Drawing analysis, Meeting discussing, program auditing, PC & QC. stainless steel carbon steel gear , pinion and ...