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How & What

Our team attaches great importance to environmental protection, energy-saving and emission-reduction.

astm a500 black steel pipe

ASTM A500

ASTM A500 standard specification covers carbon steel, cold formed welded and seamless structural tube in both round and shaped forms.
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astm a252 structural steel tube

ASTM A252

ASTM A252 standard covers nominal wall cylindrical steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in-place concrete piles.
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erw pipe a178 02

ASTM A178

ASTM a178 / a178M Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
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erw pipe a135

ASTM A135

ASTM A135, identical with ASME SA-135, is the standard specification for electric-resistance-welded steel pipe.
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asme sa 249 tp304 stainless steel tube

SA 249 Stainless Steel

ASME SA 249 standard is for welded stainless steel tubes, the tubes are installed for heat changer, boiler and condenser in heating or cooling deliver system.
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