Supply API 7K, API 7F Petroleum Roller Chain at discount price.
16S-1 16S-2 16S-3 16S-4 16S-5 16S-6 16S-8
20S-1 20S-2 20S-3 20S-4 20S-5 20S-6 20S-8
24S-1 24S-2 24S-3 24S-4 24S-5 24S-6 24S-8
28S-1 28S-2 28S-3 28S-4 28S-5 28S-6 28S-8
32S-1 32S-2 32S-3 32S-4 32S-5 32S-6 32S-8
36S-1 36S-2 36S-3 36S-4 36S-5 36S-6 36S-8
40S-1 40S-2 40S-3 40S-4 40S-5 40S-6 40S-8
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas