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সাক্ষ্যদান

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QUALITY MANAGEMENT SYSTEM CERTIFICATE

QUALITY MANAGEMENT SYSTEM CERTIFICATE

CERTIFICATE OF TECHNICAL INSPECTION

CERTIFICATE OF TECHNICAL INSPECTION

Trademark Registration Certificate

Trademark Registration Certificate

Trademark Registration Certificate

Trademark Registration Certificate

A type of reducing rubber joint

A type of reducing rubber joint

A limited threaded connection rubber joint

A limited threaded connection rubber joint

A limit flexible rubber joint

A limit flexible rubber joint

A device for unclogging the inner wall of a curved pipeline

A device for unclogging the inner wall of a curved pipeline

A threaded rubber joint

A threaded rubber joint

An underwater pipeline inner wall cleaning device

An underwater pipeline inner wall cleaning device

A double ball rubber joint

A double ball rubber joint

A telescopic joint protection device

A telescopic joint protection device

A flexible rubber elbow

A flexible rubber elbow

A flexible high-pressure single ball rubber joint

A flexible high-pressure single ball rubber joint

A clamp type rubber duckbill check valve

A clamp type rubber duckbill check valve

A type of metal hose

A type of metal hose

A valve based auxiliary opening and closing device

A valve based auxiliary opening and closing device

A welding metal compensator

A welding metal compensator

A steel expansion joint for pipelines

A steel expansion joint for pipelines

A pipeline joint device used at the corner of a pipeline

A pipeline joint device used at the corner of a pipeline

A portable chamfering mechanism blade for pipeline auxiliary installation

A portable chamfering mechanism blade for pipeline auxiliary installation

A pipeline joint with adjustable flow rate for water supply and drainage

A pipeline joint with adjustable flow rate for water supply and drainage

A cover press loose sleeve limit expansion joint

A cover press loose sleeve limit expansion joint

A negative pressure rubber joint

A negative pressure rubber joint

A flange type loose sleeve expansion joint

A flange type loose sleeve expansion joint

A portable pipe chamfering mechanism for valve installation

A portable pipe chamfering mechanism for valve installation

A PTFE lined rubber joint

A PTFE lined rubber joint

A bellows compensator

A bellows compensator

A pressure monitoring joint for water supply and drainage pipelines that is easy to disassemble and

A pressure monitoring joint for water supply and drainage pipelines that is easy to disassemble and

A self sealing rubber joint

A self sealing rubber joint

A device for connecting pump body and pipeline

A device for connecting pump body and pipeline

An environmentally friendly low-noise valve

An environmentally friendly low-noise valve

A high elasticity rubber shock absorber joint

A high elasticity rubber shock absorber joint

business license

business license

High tech enterprises

High tech enterprises

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