plastics piping and ducting systems
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سهشنبه 25 خرداد 1395 ساعت 07:36
Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds1
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شنبه 22 خرداد 1395 ساعت 12:58
thermoplastic pipe and fitting
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پنجشنبه 2 اردیبهشت 1395 ساعت 02:59