How to fill the valve gland of liquid line, लिक्विड लाइन का वाल्व ग्लैंड कैसे भरे

Dosto is video me liquid line ka valve bgland fill karne ke baare me bataya gaya ga to is video ko last tak jaroor dekhe, thanks. Hi, I am purushotam, Welcome to our youtube channel About cold storage in Hindi. #aboutcoldstorageinhindi #hindi