In the summer of 1981 a friend called me to ask if I would be interested in moonlighting to help him install floor sealer for a company in California. Even though I worked 18 hours that day, I decided ...
The PH150-C ExStik Concrete pH Test Kit features a flat surface electrode design for on-the-spot pH measurements on concrete. The test kit features a probe guard to protect the electrode, a RENEW ...
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