 | SF10 | Anti-kink and anti-scraping spring SF | 10 | | |
 | SF15 | Anti-kink and anti-scraping spring SF | 15 | | |
 | SF17 | Anti-kink and anti-scraping spring SF | 17 | | |
 | SF18 | Anti-kink and anti-scraping spring SF | 18 | | |
 | SF19 | Anti-kink and anti-scraping spring SF | 19 | | |
 | SF20 | Anti-kink and anti-scraping spring SF | 20 | | |
 | SF21 | Anti-kink and anti-scraping spring SF | 21 | | |
 | SF22 | Anti-kink and anti-scraping spring SF | 22 | | |
 | SF23 | Anti-kink and anti-scraping spring SF | 23 | | |
 | SF24 | Anti-kink and anti-scraping spring SF | 24 | | |
 | SF25 | Anti-kink and anti-scraping spring SF | 25 | | |
 | SF26 | Anti-kink and anti-scraping spring SF | 26 | | |
 | SF27 | Anti-kink and anti-scraping spring SF | 27 | | |
 | SF29 | Anti-kink and anti-scraping spring SF | 29 | | |
 | SF30 | Anti-kink and anti-scraping spring SF | 30 | | |
 | SF31 | Anti-kink and anti-scraping spring SF | 31 | | |
 | SF33 | Anti-kink and anti-scraping spring SF | 33 | | |
 | SF34 | Anti-kink and anti-scraping spring SF | 34 | | |
 | SF35 | Anti-kink and anti-scraping spring SF | 35 | | |
 | SF37 | Anti-kink and anti-scraping spring SF | 37 | | |