Pipa baja mulus pikeun dandang tekanan rendah sareng sedeng - Gold Sanon International Co., Ltd.

tabung baja Seamless pikeun boilers tekanan lemah sareng sedeng

GB 3087 baku seamless boiler alloy pipe baja

Seamless Boiler Alloy Steel Pipe Sareng IBR Sertifikasi Tekanan Rendah Tekanan Sedeng Pikeun Pasar India Penjualan Panas

GB / T 3087-2008: 10 # baja, 20 # baja

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