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  2. 日韩v亚洲ⅴ欧美v精品综合_中文字幕在亚洲第一在线_天天摸夜夜添狠狠添高潮出水_精品无码av一二三一区日韩专区

    JINGHONG

    Weathering board

    Weathering Steel can be exposed to the atmosphere without painting. It begins to rust in the same way as ordinary steel. But soon the alloying elements in it cause a protective surface layer of fine-textured rust to form, thereby suppressing corrosion rate.

    Carbon steel round tube

    Carbon steel pipe, carbon welded pipe, carbon seamless steel pipe, API steel pipe using hot rolled steel pipe billet to make heating and piercing, elongating, sizing and straightening, cooling, finally hollow bars finished, this is the type most commonly used. Because it is hot rolled, so cost is lowest, but it is suit for large quantity, for small quantity, have to make cold drawn or round bar piercing. size: outer diameter?32mm- 499mm, wall thickness?4mm- 80mm

    Stainless Steel Pipe

    Stainless steel pipe is a kind of hollow long round/square steel, stainless steel pipe is divided into seamless steel pipe and welded steel pipe.mainly used in petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and other industrial pipeline and mechanical structure parts.In addition, in bending, torsional strength at the same time, relatively light weight, so also widely used in the manufacture of mechanical parts and engineering structures..It is also commonly used in the production of various conventional weapons, barrels, shells etc.

    Die steel

    Tool steel is used to manufacture cold punching die, hot forging die, die casting die and other types of steel.Mould is the main tool for manufacturing parts in the industrial sectors such as machinery manufacturing, radio instruments, motors and electric appliances.The quality of the die directly affects the quality of the pressure processing technology, the precision of the product output and production cost, and the quality and service life of the die in addition to the reasonable structure design and processing accuracy, mainly affected by the die material and heat treatment.

    Angle steel

    There are mainly two types: equilateral angle steel and unequal angle steel. Among unequal angle steel, there are unequal edge thickness and unequal edge thickness.

    日韩v亚洲ⅴ欧美v精品综合_中文字幕在亚洲第一在线_天天摸夜夜添狠狠添高潮出水_精品无码av一二三一区日韩专区
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