The QZ landing collar comprises housing，ball seat and latch.The latch holds ball seat through pins. After the hanger is set. pressurize to shear the pins and release the ball seat.
1. The landing collar can be used with any kinds of hydraulic liner hangers.
2. Combination plug with latch provides efficient seal which prevent the slurry backflow.
3. The materials of inner sleeves allow easy drillout.
Cement HeadCirculating HeadCirculating Swage Dezhou Quanxing Petroleum Machinery Co., Ltd.Add: No.2687 Yuying Road,Tianqu Industrial Zone Dezhou City, ShandongTEL：86-534-2238669 FAX：86-534-2238667 www.dzquanxing.comE-mail：Crackpm@Sina.com WeChat:13853425825 QQ 4
Saigao Group send the casing to our regular client casing. Our client are very interested in our casing.