... treatmentBlacking, galvanization, chroming, electrophoresis, color painting, or customer requirementPerformanceHigh precision, high wear resistance, low noise, smooth and steady, high ... parts and lower price.3.A wide range of precision in house machining capablities.4.Industrial roller chain of sprocket ... the cost,then give you the best price3. Precision Stamping Payment and Delivery1.payment is T/T,30 ...