30YT-20J |
30YT-26J |
10YT-24J |
15YT-30J |
16YT-4J |
16YT-6J |
16YT-9J |
16YT-14J |
16YT-20J |
100YT-2J |
30YT-3J |
100YT-5J |
1000YT-1J |
30GZ-20K |
30GZ-26K |
10GZ-24K |
15GZ-30K |
16GZ-4K |
16GZ-6K |
16GZ-9K |
16GZ-14K |
16GZ-20K |
100GZ-2K |
30GZ-3K |
100GZ-5K |
1000GZ-1K |
Jining Donghong Machinery Co., Ltd
www.dhparts.com
dh@dhparts.com
spareparts1960@gmail.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas