HENAN XINGHUA MACHINERY MANUFACTURING CO., LTD

Interal 3 -Straight rib stabilizer, Intefral 4-Straight rib stabilizer, working surface are provided with carbide insert compound or overlay welding,

1. Material: AISI 4145H Alloy steel 2. Shape: It is the round pipe with smooth surface and thick wall, and the both ends are machined screw thread

1.Reliable quality and Reasonable price 2.API Spec7-1 and SY5411 standard 3.ID size from 79.4mm to 279.4mm...

1. Key word: Non-magnetic Drill Collar 2.Usage: oil drilling 3. Cert: API 4. Delivery: 30 days

1. Material: AISI 4145H Mod Alloy steel, Non magnetic steel, etc. 2. Types: Drill String type and Near bit type. 3. Use: It is mainly used to stabil

1.AISI 4145H mod alloy steel, non magnetic steel, ect. 2.Strict quality assurance system 3.Factory directly 4.Timely delivery