bids are invited for qualification testing of 9 types of valve altitude test , temperature shock test , first batch rain drip test , second batch rain drip test , third batch rain drip test , humidity test , fungus resistance test , salt fog test , sand and dust blow tset , first batch fluid contamination test , second batch fluid contamination test , third batch fluid contamination test , first batch random vibration test , second batch random vibration test , third batch random vibration test , functional shock test per batch , first batch transit drop test , second batch transit drop test , third batch transit drop test , acceleration test , fixture for vibration test total quantity : 1107