... delivery 4.Moving smoothly 5.Safe and easy installation. factory produce gas spring used in medical bed lockable gas spring for ... factorywelcome to visit our factory Company IntroductionYangzhou Mingrui Gas Spring Co., LTD was established in March, 2003, it is a specialized company ... of gas spring, just please let us know. We could produce as your design or design for you.SampleTwo samples are ...