Quality Commitment

SIGMA believes that quality does not cost, it pays. Our team commitment to quality is to maximize the combined value of our service to each of our customers, by supplying all of our products to the highest requirements and standards of customer satisfaction. We strive to ensure that our products are delivered free of defects at a competitive price, with the utmost attention to all aspects of product development, production, and supply chain management.

• Preparation and implementation of Quality Inspection Procedures (QIP) for every product line.
• Audit, inspection and testing of the product at the manufacturing location by Sigma engineers stationed in the factories, prior to shipping.
• Qualification data on physical, chemical and microstructure tests submitted by the foundry through Material Test Reports
• Verification of that data by Incoming Quality Control (IQC) procedures at our facilities in USA
• Control of process through feedback obtained from statistical analysis including Statistical Process Control (SPC) of critical factors
• SIGMA has produced detailed Quality Inspection Procedures (QIP) for each product category to guide our overseas foundries.