Sui Northern Gas Pipelines Limited invites sealed bids from original manufacturers and authorized distributors for the supply of covering stud bolts. The tender includes 5 items totaling 552 pieces, intended for gas transmission and distribution projects. Bidders must be registered with Income Tax and Sales Tax Departments and provide valid professional tax clearance certificates. The tender documents require a purchase fee and proof of active taxpayer status. Foreign bidders are encouraged to participate with specific instructions for currency handling and document submission.