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Bid comparison workflow before the start of the project:1. Project execution involving trial suppliers requires two or more companies to compare prices and then select the best cooperation.2. When the customer specifies the supplier or brand situation, it is necessary to communicate in advance to determine the procurement program before proceeding.Grade evaluation workflow:3. Supplier rating once a year, the “trial” ratingSuppliers shall be re-assessed after one cooperation or one inspection period.4. For qualified suppliers, if the assessment result only reaches “trial” and/or the following score for two consecutive years, the supplier qualification shall be canceled.

Overview and Applications Natural Rubber  1、Natural rubber is derived from the latex of rubber trees. It is valued for its excellent elasticity, high strength, good insulation, minimal deformation, and ease of processing. 2、However, it has some drawbacks, including poor oil resistance, limited temperature stability, and susceptibility to aging. As a result, it is often blended with other materials. 3、Natural rubber is commonly used in automotive tires and various shock-absorbing and wear-resistant components. Synthetic Rubber1、Synthetic rubber includes several types, each with unique properties and uses. Common types are Styrene-Butadiene Rubber (SBR), Nitrile Rubber (NBR), Butadiene Rubber (BR), Ethylene-Propylene-Diene Monomer (EPDM), and Butyl Rubber (IIR). SBR is used in tires and industrial products, NBR is known for its oil resistance, and BR is valued for its resilience.2、Other types include Chloroprene Rubber (CR), Acrylic Rubber (ACM), Hydrogenated Nitrile Rubber (HNBR), Chlorosulfonated Polyethylene (CSM), and Fluoroelastomer (FKM). CR is used in adhesives and coatings, ACM and HNBR offer excellent heat and chemical resistance, and FKM is used in high-performance seals.3、Silicone Rubber (MVQ) is noted for its high heat resistance and flexibility, making it suitable for cookware, seals, and medical devices. Each type has specific applications based on its unique properties.