API SPEC 5B, SPEC 7 Certificate of thread gages in China. All of our export products provided independent third-party certification which is recognized by API. Based on professional and honesty, we welcome the ...

water well. Both insert drill bits and steel tooth bit Sizes ranging from 4-1/4" to 36" Roller Bearring or Journal Sealed Bearring Special features available such as gaging and reamer tooth API ...

We supply API Products to world wide oil and gas industry: API Specification 2B Structural Steel Pipe API Specification 2C Offshore Cranes API Specification 2F Mooring Chain API Specification 2H Carbon Manganese ...

magnetic particle inspection and photoelasticity and fire safe tests, strain gage testing. Qiujing is a member of API and is complies to all major international standards including: API 600 API 6D ANSI B16.34 ...

API, ANSI, ISO, JIS, DIN BS and GB standards. The drive patterns include manual operation, electrical operation, pneumatic operation, hydraulic operation, hydro-pneumatic operation and computer-controlled operation. ...