Elbow size and precautions

　　6" Stainless Steel DIN2999 90 Degree Elbow before bonding, the application of dry cloth will be the mouth side of the mouth and the mouth of the wipe treatment, when the surface of the oil must be wiped with acetone wipe clean, the following points to note: 1, control caliber: DIN standard (DN10-DN150), 3A / IDF standard (1/2 "-6"), ISO standard (Ф12.7-Ф152.4); 2, the international industry standards: DIN, ISO, SMS, 3A, IDF, etc .; 3, the product material: stainless steel 304,316,316 L; 4, quality and use: the size of the head inside and outside the use of high-grade polishing equipment to meet the surface precision requirements.