... major is gas spring, compression gas spring, free gas spring, lockable gas spring, locking gas spring, elastic lockable gas spring, rigid lockable gas spring,gas struts and ... and reasonable price.If you have special requirements of gas spring,just please let us know. We could produce as ... )d (Piston Rod Diameter)M(Thread)F1(Minimum Extension Force)206/8M6/M850-1000 N228/10M8/M10100-1500 N258/10M8 ...