并可根据用户的要求制造，材质为碳钢衬胶和不锈钢二种。
According to the user's requirements and manufacturing, made of carbon steel and stainless steel Chenjiao two kinds.
准备碳钢、不锈钢、特材、衬四氟的焊接工艺文件，并和相关部门做技术交流。
Prepare for WPS for CS, Low-alloy Steel, SS, Special Metal and FPE products and communicate with related department for technical communication.
用不锈钢或碳钢制作时，内部需衬胶处理，以防止腐蚀壳体材料。
When with stainless steel or carbon steel, the interior must line with rubber processing, preventing to canker shell material.
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