Drill string cross-over sub is made of AISI 4145H modified CrMo alloy steel.
There can be manufactured
three kinds: straight OP subs, reduced section sub and left hand subs.
All threads are phosphated, copperized or cold worked.
Contact Name: Vivian Zhao
Company Name: Jiyuan Sanhe Zhengyuan Petroleum Machinery Co., Ltd
Street Address: South Sanhe
Villiage, Sili Town, Jiyuan City,
Henan Province, China 454650
Member name: jiyuansanhezhengyuan
Member Since: 24 June 2009
Total Leads: 10 jiyuansanhezhengyuan Import Export Business Leads
Business focus: Drilling Tools, Drill Collar, Integral Heavy Weith Drill Pipe, Stabilizer, Pup Joint, Cross Sub
Verify: Safe Import Export Tips