Costume
发表于 2025-4-1 04:29:55
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阻塞
发表于 2025-4-1 07:25:10
Thermoplastic Rubber (A-B-A Block Copolymers) in Adhesivesperatures it has the toughness and resilience of vulcanized natural rubber or polybutadiene. This characteristic results from its unique molecular structure. Visualize the simplest thermoplastic rubber molecule: a rubbery midblock with two plastic endblocks. This situation is pictured schematically