C-Flex®1 to M-Flex® Weld Demonstration C-Flex®1 to M-Flex® Weld Demonstration Related Quick Links M-Flex®Tubing M-Flex® to M-Flex® Weld Demonstration C-Flex®1 to M-Flex® Weld Demonstration 1. C-Flex® is a registered trademark of Saint-Gobain Performance Plastics Corporation.