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Fire sprinkler head is now generally stainless steel or brass sprinkler head, type is co...
Fire sprinkler head is now generally stainless steel or brass sprinkler head, type is commonly spray head.
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Spray valve fittings, metal molds, metal parts, metal products, general machinery and equipment manufacturing, processing and sales, is engaged in the field of security technology in spray technology, technology development, technology transfer, technical consulting, technical services, spray materi...
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