Calibration Weights

Dear Sir/Madam,

I am proud to be linked with you.


We, produce exclusively Cast Iron Weights since 1961. OIML appreciated our Weights in 1973. OIML recognized us as one of the supplier of Cast Iron Weights in their Guides (G 12 – Suppliers of verification equipment) published in Mars, 1987.


Manufacturing Cast Iron Weights as per OIML Recommendation is our specialty. We also manufacture as per design of buyer. Our range is 50g to 1000kg and 4-oz to 3000lb in all accuracy class.

We maintain quality of our products strictly as per International Standards with guaranteed accuracy. Our major production is being consumed by buyers from Germany, Canada, France, Australia, Netherlands, Belgium, U.K., Qatar, Dubai, South Africa, Ireland, Cyprus, Tanzania etc. etc.

Our Calibration Laboratory is accredited in accordance with ISO/IEC 17025:2017.

For our full activity you may see our url https://www.weights-swpi.com

Long term relation is our objective.

Kind regards,


Surendra Singhania

Shanker Wire Products Industries

DEOGHAR – 814112  (Jharkhand) INDIA

Mob: +91 9386142223

E.mail swpi@rediffmail.com

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