I've been accused ,by PSTO with #2, of copying a design. It's about #30. Not true. It's a coincidence. You should delete that design? I wonder. I have added a new concept #49, anyway. Regards!
About #89, #88, #87 I realized another concept. This symbol denotes strength, long durability, reliability. The symbol can be easily used on promotional support. And it's economical.. Best Regards!
About #101, #102 The symbol consists of combining the three letters S, B and C. Everything is concentrated in a strong symbol with an important impact. I am looking forward any suggestion. Regards!
About #114 It's a new fresh concept. . I realized a symmetrical symbol that is inscribed in a hexagon. The letters S and C are built in 3D style. The rivet and screw in hexagon shaped refers to any steel construction. I think it's a version that can be exploited. I hope you like it. Regards!